CVE-2026-22692
MEDIUMOctober CMS: Twig Sandbox Bypass via Collection Methods
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-22692. PoCs published by lukasz-rybak.
AI-analyzed exploit summary The repository provides functional Twig payloads demonstrating a sandbox bypass in October CMS via `collect()->mapInto()`, enabling RCE, LFI, and XXE attacks. The PoC leverages class instantiation to execute arbitrary PHP functions or read files.
Description
October is a Content Management System (CMS) and web platform. Versions prior to 3.7.13 and versions 4.0.0 through 4.1.4 contain a sandbox bypass vulnerability in the optional Twig safe mode feature (CMS_SAFE_MODE). Certain methods on the collect() helper were not properly restricted, allowing authenticated users with template editing permissions to bypass sandbox protections. Exploitation requires authenticated backend access with CMS template editing permissions and only affects installations with CMS_SAFE_MODE enabled (disabled by default). This issue has been fixed in versions 3.7.13 and 4.1.5. To workaround this issue, users can disable CMS_SAFE_MODE if untrusted template editing is not required, and restrict CMS template editing permissions to fully trusted administrators only.
Exploits (1)
The repository provides functional Twig payloads demonstrating a sandbox bypass in October CMS via `collect()->mapInto()`, enabling RCE, LFI, and XXE attacks. The PoC leverages class instantiation to execute arbitrary PHP functions or read files.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N