## Summary Deleting a task relation only requires write access on the base task. Unlike relation creation, it does not verify that the caller can read the other task. A user with write access to one project can therefore delete relations whose other end lives in a project they have no access to. Since the delete removes both the forward and inverse rows, the relation also disappears for the other project's members. ## Details `TaskRelation.CanCreate` (`pkg/models/task_relation_permissions.go:32-52`) requires write access on `TaskID` **and** read access on `OtherTaskID`. `TaskRelation.CanDelete` (`pkg/models/task_relation_permissions.go:25-29`) only checks `Task{ID: rel.TaskID}.CanUpdate(s, a)`; `OtherTaskID` is never authorized. `TaskRelation.Delete` (`pkg/models/task_relation.go:314-354`) then deletes both the `(task_id, other_task_id, kind)` row and its inverse, so the relation is removed from the far task as well. Affects `DELETE /api/v1/tasks/{id}/relations/{kind}/{otherTaskId}` and the equivalent v2 endpoint. ## Impact Low, integrity only. An authenticated user holding write permission on a shared project can remove task relations that link into projects they cannot read. No data is disclosed and no privilege is gained; the attacker cannot recreate the relation. The far project's owner sees the relation vanish without indication of who removed it. Preconditions: the attacker has write access to a project containing a task that is already related to a task in a project they cannot access. ## Proof of Concept 1. As `owner`, create project `P_near` with task `near` and project `P_far` with task `far`. 2. Share `P_near` with `attacker` at write permission (`permission: 1`). Do not share `P_far`. 3. As `owner`: `PUT /api/v1/tasks/{near}/relations` with `{"other_task_id": far, "relation_kind": "related"}` -> 200. 4. As `attacker`: `GET /api/v1/tasks/{far}` -> 403 (confirms no access). 5. As `attacker`: `PUT /api/v1/tasks/{near}/relations` with the same body -> 403 (create path is enforced). 6. As `attacker`: `DELETE /api/v1/tasks/{near}/relations/related/{far}` -> 200 `"Successfully deleted."` 7. As `owner`: `GET /api/v1/tasks/{far}` -> `related_tasks` is now empty. Reproduced against `vikunja/vikunja:2.5.0`. ## Recommended Fix Make `CanDelete` mirror `CanCreate`: after checking `CanUpdate` on the base task, also require `CanRead` on `OtherTaskID`.
PoC: CVE-2026-102489
CVE-2026-102489 exploit in golang
PoC: sqli-cve-2026-102428
PoC: OrdaSoft Joomla OS CCK (com_os_cck) 8.3.15 unauth SQLi —mass+exploit+dork
PoC: debian-on-s23-ultra
A Samsung Galaxy S23 Ultra running Debian 13 as a server. The bootloader is locked, so an app re-establishes root after every reboot: Shizuku, CVE-2026-43499, KernelSU Next late-load, then a Debian chroot with sshd. One APK, quickstart, chroot bootstrap, and notes on everything that did not work.
PoC: CVE-2026-88776
Write-up for CVE-2026-88776
PoC: CVE-2026-80428
ILIAS ≤ 9.21 / 10.9 / 11.2 — Unauthenticated PHP Object Injection (RCE)
PoC: CVE-2026-102255
CVE-2026-102255 - Draft or TODO
PoC: CraftCMS-CVE-2026-79987
Authenticated RCE exploit for Craft CMS 5.9.0–5.10.12 (CVE-2026-79987). Time-based save-action oracle + raw-TCP exfil. Verified on vanilla lab.
PoC: kgsl-1905-msm8953
Research notes & harnesses: KGSL SVM use-after-free (CVE-2021-1905) on Qualcomm MSM8953 / Adreno 506 / kernel 3.18 armv7. Credits upstream patches and prior art.
PoC: postgres-basebackup-symlink
PostgreSQL 18.6 - High - Remote - File write - pg_basebackup follows absolute tar symlink leftover of CVE-2026-6475
PoC: CVE-2026-103889
Proof of concept and isolated Docker lab for CVE-2026-103889, an unauthenticated RCE vulnerability in Expivi 3D Product Configurator for WooCommerce ≤ 2.16.2.
PoC: CVE-2026-9586_POC_EXPLOIT
For new CVEs without existing/working/non-mangled POCs
PoC: CVE-2026-91136
CVE-2026-91136 Divi Plus <= 2.4.0 unauthenticated arbitrary file read (mass scanner + exploit)
PoC: langflow-cve-2026-9198
Independent reconstruction, lab validation, and PoC for CVE-2026-9198, the Langflow unauthenticated RCE (fixed in 1.10.1)
PoC: metabase-cve-2026-72898
Independent reconstruction, lab validation, and PoC for CVE-2026-72898 — Metabase unauthenticated SQLi (patched in 0.63.5)
PoC: CVE-2026-15748
Unauthenticated RCE in WordPress Forminator Forms <= 1.56.1 (CVSS 9.8)
PoC: CVE-2026-104286-PoC
PoC CVE-2026-104286 FortiMail
PoC: ReactorWriteUp-HackTheBox
Reactor es una máquina Linux fácil vulnerable a CVE-2025-55182 (React2Shell), RCE sin autenticación en React Server Components. Accedemos como node, crackeamos un hash MD5 de una base de datos SQLite y pivotamos a engineer por SSH. La escalada abusa del flag --inspect de Node.js para ejecutar código como root vía depuración V8.
PoC: CVE-2026-105306
CVE-2026-105306: Token Introspection Audience Bypass via Dynamic Client Registration in Keycloak - Writeup by DungSoCool
PoC: GhostLock-Next
The next implementation of GhostLock CVE-2026-43499
PoC: ElasticRift
A vulnerable-by-design, secure-by-deployment NGINX pipeline centered around the aftermath of CVE-2026-42945 (NGINX Rift).
PoC: CVE-2026-27626
CVE-2026-27626 - OliveTin <3000.10.0 OS command injection via password-typed arguments, escalating to root when OliveTin runs as root.
PoC: Exploit-CVE-2026-40224
CVE-2026-40224: systemd-machined local privilege escalation
PoC: CVE-2026-41940-PoC
cPanel & WHM Authentication Bypass via CVE-2026-41940 explotation
PoC: CVE-2025-57819
FreePBX unauthenticated SQLi (endpoint module)
PoC: CVE-2026-43805
Binary diff analysis and non-destructive PoC for CVE-2026-43805
PoC: diskcache-community
Community-maintained hard fork of grantjenks/python-diskcache: SQLite-backed persistent cache for Python, with a fix path for CVE-2025-69872
PoC: CVE-2026-108592-poc
CVE-2026-108592 — Environment Variable Exposure PoC in mini-swe-agent
PoC: odin-od105-devkit
CVE-2019-2215 temporary root toolkit for Smartisan Nut Pro (OD105)
PoC: CVE-2026-84568
Reproducible macOS automountd research and lab PoCs for CVE-2026-84568 and CVE-2026-84570: fstype path traversal, NFS payload delivery, Gatekeeper behavior, and root code execution.
PoC: cs50-cybersecurity-final-project
Technical analysis of Log4Shell (CVE-2021-44228) for CS50 Cybersecurity.
PoC: CVE-2026-84411
CVE-2026-84411 — MikroTik RouterOS WebFig Integer Underflow Exploit
PoC: CVE-2025-9548
CVE-2025-9548: Lenovo Power Management Driver null-pointer dereference research and gated PoC
PoC: CVE-2026-69414
**CVE-2026-69414** is an elevation of privilege vulnerability in the **Microsoft Malware Protection Engine** (part of Windows Defender / Microsoft Defender Antivirus), publicly referred to as **"RoguePlanet"**. It represents a **patch bypass** of the original vulnerability **CVE-2026-50656**.
PoC: CVE-2026-103690
SQL injection (CWE-89) in itsourcecode Leave Management System 1.0 - CVE-2026-103690 / VulDB VDB-412559
PoC: CVE-2026-102428
CVE-2026-102428 PoC: OrdaSoft Joomla OS CCK (com_os_cck) <=8.3.15 unauth SQLi — order_field/order_direction ORDER BY injection on public listings. Check + mass exploit, POCBIT-102428-OK marker, CVSS 9.3. https://pocbit.org/pocs/cve-2026-102428
PoC: CVE-2026-106445
CVE-2026-106445 — Handlebars 4.0.0–4.7.9 RCE via Function.prototype.constructor bypass (GHSA-p8wg-vrv2-v86f). PoCbit PoC + Docker lab (4.7.9), check/exploit HTTP client, GHSA template chain. Fixed 4.7.10. https://pocbit.org/pocs/cve-2026-106445
PoC: CVE-2026-107806
CVE-2026-107806 — nginx-ui 2.3.8–2.4.x auth RCE via forged backup restore (TestConfigCmd). PoCbit PoC: GET /api/backup, tamper app.ini, POST /api/restore, POST /api/nginx/test. check/exploit, batch url|JWT. Fixed 2.5.0. https://pocbit.org/pocs/cve-2026-107806
PoC: ModelSim-Decryptor
CVE-2021-42023
PoC: CVE-2026-94503
Zombify <= 1.7.7 Unauthenticated Arbitrary File Upload
PoC: CVE-2026-85097
Bricksforge <= 3.1.8.9 Unauthenticated Arbitrary File Upload
PoC: Docker-Lab-CVE-2024-4367
Docker lab to test proof of concepts for CVE-2024-4367. A high-severity type confusion and remote code execution flaw in Firefox PDF.js font handling due to missing type checks (affecting Firefox < 126, Firefox ESR < 115.11, and PDF.js < 4.2.67).
PoC: braces-security-backport
MIT-licensed braces 3.0.3 with reviewed CVE-2026-93687 depth backport; pinned consumption only
PoC: fortimail-cve-2026-104286-response
FortiMail CVE-2026-104286 (CVSS 9.8) 점검·대응 도구 (버전 확인, IoC 점검, 완화·패치 체크리스트)
PoC: telegram-cve-2026-107181
Telegram CVE-2026-107181
PoC: CVE-2026-84520
AppleFDEKeyStore poc
PoC: larkspur-billing
Synthetic-data billing portal pinned to next@14.2.24 (CVE-2025-29927) — test customer for oopsie
PoC: apache-tomcat-security-audit
Penetration test of Apache Tomcat — Ghostcat, CVE-2017-12615 and Struts2/OGNL exploitation with MITRE ATT&CK mapping
PoC: CVE-2026-21589
Atlassian Arbitrary File Read
PoC: honor90-ghostlock
GhostLock (CVE-2026-43499) + KernelSU late-load port for Honor 90 REA-NX9, MagicOS 9.0.0.211 / Android 15 (pure-GKI 5.10.236). Fork of GhostLock-H80GT.
PoC: CVE-2025-34071
RCE in Kerio Control 9.4.5 via unsigned firmware update.
PoC: honor-90gt-mag-an00-root-research
荣耀 90 GT (MAG-AN00) 提权尝试全记录：CVE-2026-64560 移植、堆喷射原语穷举与漏洞判定方法论
PoC: CVE-2026-28775
CVE-2026-28775 SNMP RCE
PoC: CVE-2021-26828
Corrected python code for CVE-2021-26828
PoC: citrix-netscaler-rce-cve-2026-107406
A complete guide and workflow for integrating Agile sprints with DevOps CI/CD pipelines.
PoC: CVE-2026-94597-poc
CVE-2026-94597
PoC: REDMI_Root
Redmi Pad Pro (dizi) 内核 Root 方案 — CVE-2026-43499 select_stack 适配，KernelSU 越狱模式
PoC: exploit-docs
the files/docs for various exploits, such as (LTBEEF, Sh1mmer, CryptoSmite, RMASmoke, aka: CVE-2025-1122, etc.)
PoC: Root-My-Galaxy-Payloads-SM-S928N
Device-specific CVE-2026-43499 payload profile for Galaxy S24 Ultra SM-S928N (S928NKSU6EZIF, Android 17, kernel 6.1.162)
PoC: CVE-2026-55450
CVE-2026-55450
PoC: vulhub-php-cve-2012-1823
Vulhub php/CVE-2012-1823: PHP-CGI Query String Argument Injection (CVE-2012-1823), run with Isoloom
PoC: vulhub-unomi-cve-2020-13942
Vulhub unomi/CVE-2020-13942: Apache Unomi MVEL/OGNL Injection RCE (CVE-2020-13942), run with Isoloom
PoC: vulhub-libssh-cve-2018-10933
Vulhub libssh/CVE-2018-10933: libssh Server Authentication Bypass (CVE-2018-10933), run with Isoloom
PoC: vulhub-spring-cve-2016-4977
Vulhub spring/CVE-2016-4977: Spring Security OAuth2 Whitelabel SpEL RCE (CVE-2016-4977), run with Isoloom
PoC: vulhub-rails-cve-2018-3760
Vulhub rails/CVE-2018-3760: Ruby on Rails Sprockets Path Traversal (CVE-2018-3760), run with Isoloom
PoC: vulhub-h2database-cve-2022-23221
Vulhub h2database/CVE-2022-23221: H2 Database Console JDBC URL RCE (CVE-2022-23221), run with Isoloom
PoC: vulhub-flink-cve-2020-17519
Vulhub flink/CVE-2020-17519: Apache Flink JobManager Directory Traversal (CVE-2020-17519), run with Isoloom
PoC: vulhub-elasticsearch-cve-2014-3120
Vulhub elasticsearch/CVE-2014-3120: Elasticsearch MVEL Dynamic Script RCE (CVE-2014-3120), run with Isoloom
PoC: vulhub-dubbo-cve-2019-17564
Vulhub dubbo/CVE-2019-17564: Apache Dubbo HTTP Protocol Deserialization (CVE-2019-17564), run with Isoloom
PoC: vulhub-cacti-cve-2022-46169
Vulhub cacti/CVE-2022-46169: Cacti remote_agent.php Command Injection (CVE-2022-46169), run with Isoloom
PoC: vulhub-apisix-cve-2020-13945
Vulhub apisix/CVE-2020-13945: Apache APISIX Default Admin Token RCE (CVE-2020-13945), run with Isoloom
PoC: vulhub-spring-cve-2022-22947
Vulhub spring/CVE-2022-22947: Spring Cloud Gateway Actuator Code Injection (CVE-2022-22947), run with Isoloom
PoC: vulhub-redis-cve-2022-0543
Vulhub redis/CVE-2022-0543: Redis Lua Sandbox Escape (CVE-2022-0543), run with Isoloom
PoC: vulhub-jmeter-cve-2018-1297
Vulhub jmeter/CVE-2018-1297: Apache JMeter RMI Deserialization RCE (CVE-2018-1297), run with Isoloom
PoC: vulhub-activemq-cve-2016-3088
Vulhub activemq/CVE-2016-3088: ActiveMQ Fileserver Arbitrary File Write (CVE-2016-3088), run with Isoloom
PoC: vulhub-glassfish-cve-2017-1000028
Vulhub glassfish/CVE-2017-1000028: GlassFish 4.1 Admin Console Arbitrary File Read (CVE-2017-1000028), run with Isoloom
PoC: vulhub-appweb-cve-2018-8715
Vulhub appweb/CVE-2018-8715: Appweb Digest Authentication Bypass (CVE-2018-8715), run with Isoloom
PoC: mhl-off-hook-writeup
a challenge for a CVE-2026-49881
PoC: vulhub-openssh-cve-2018-15473
Vulhub openssh/CVE-2018-15473: OpenSSH 7.7 Username Enumeration (CVE-2018-15473), run with Isoloom
PoC: vulhub-opensmtpd-cve-2020-7247
Vulhub opensmtpd/CVE-2020-7247: OpenSMTPD MAIL FROM Command Injection (CVE-2020-7247), run with Isoloom
PoC: vulhub-nginx-cve-2017-7529
Vulhub nginx/CVE-2017-7529: Nginx Range Filter Integer Overflow (CVE-2017-7529), run with Isoloom
PoC: vulhub-nginx-cve-2013-4547
Vulhub nginx/CVE-2013-4547: Nginx Filename Logic Vulnerability (CVE-2013-4547), run with Isoloom
PoC: vulhub-jetty-cve-2021-28164
Vulhub jetty/CVE-2021-28164: Jetty Ambiguous Path Information Disclosure (CVE-2021-28164), run with Isoloom
PoC: vulhub-imagemagick-cve-2022-44268
Vulhub imagemagick/CVE-2022-44268: ImageMagick PNG Text Chunk Arbitrary File Read (CVE-2022-44268), run with Isoloom
PoC: vulhub-drupal-cve-2014-3704
Vulhub drupal/CVE-2014-3704: Drupal 7.31 Drupalgeddon SQL Injection (CVE-2014-3704), run with Isoloom
PoC: vulhub-joomla-cve-2023-23752
Vulhub joomla/CVE-2023-23752: Joomla Webservice Improper Access Check (CVE-2023-23752), run with Isoloom
PoC: vulhub-httpd-cve-2017-15715
Vulhub httpd/CVE-2017-15715: Apache HTTP Server FilesMatch Newline Bypass (CVE-2017-15715), run with Isoloom
PoC: RMASmoke-v2
RMASmoke main repo. CVE-2025-1122, (But better)
PoC: vulhub-httpd-cve-2021-42013
Vulhub httpd/CVE-2021-42013: Apache HTTP Server 2.4.50 Path Traversal and RCE (CVE-2021-42013), run with Isoloom
PoC: vulhub-couchdb-cve-2017-12635
Vulhub couchdb/CVE-2017-12635: Apache CouchDB Privilege Escalation (CVE-2017-12635), run with Isoloom
PoC: CVE-2026-91940-crawl4ai-Arbitrary-File-Write
CVE-2026-91940: arbitrary file write in crawl4ai <=0.9.2 via the untrusted-config gate (PDFContentScrapingStrategy image_save_dir). Analysis, reproduction harness and verified 0.9.2 vs 0.9.3 boundary.
PoC: vulhub-mysql-cve-2012-2122
Vulhub mysql/CVE-2012-2122: MySQL Authentication Bypass (CVE-2012-2122), run with Isoloom
PoC: vulhub-saltstack-cve-2020-11651
Vulhub saltstack/CVE-2020-11651: SaltStack Master Authentication Bypass (CVE-2020-11651), run with Isoloom
PoC: vulhub-webmin-cve-2019-15107
Vulhub webmin/CVE-2019-15107: Webmin password_change.cgi Pre-Auth RCE (CVE-2019-15107), run with Isoloom
PoC: vulhub-phpunit-cve-2017-9841
Vulhub phpunit/CVE-2017-9841: PHPUnit eval-stdin.php RCE (CVE-2017-9841), run with Isoloom
PoC: vulhub-nacos-cve-2021-29441
Vulhub nacos/CVE-2021-29441: Nacos User-Agent Authentication Bypass (CVE-2021-29441), run with Isoloom
PoC: vulhub-grafana-cve-2021-43798
Vulhub grafana/CVE-2021-43798: Grafana Plugin Path Traversal (CVE-2021-43798), run with Isoloom
PoC: vulhub-weblogic-cve-2020-14882
Vulhub weblogic/CVE-2020-14882: Oracle WebLogic Console Pre-Auth RCE (CVE-2020-14882, CVE-2020-14883), run with Isoloom
PoC: vulhub-nexus-cve-2019-7238
Vulhub nexus/CVE-2019-7238: Nexus Repository Manager 3 JEXL Injection RCE (CVE-2019-7238), run with Isoloom
PoC: vulhub-kibana-cve-2019-7609
Vulhub kibana/CVE-2019-7609: Kibana Timelion Prototype Pollution RCE (CVE-2019-7609), run with Isoloom
PoC: vulhub-zabbix-cve-2016-10134
Vulhub zabbix/CVE-2016-10134: Zabbix latest.php and jsrpc.php SQL Injection (CVE-2016-10134), run with Isoloom
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