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CVE-2026-22692

October CMS: Twig Sandbox Bypass via Collection Methods

Published: Apr 14, 2026Updated: Apr 21, 2026 Sources: CVE List NVDCWE-284
NVD MITRE
4.9CVSSMEDIUM
EPSS Score
0.4%
Top 68.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-284CWE-693

Affected Products

octoberoctobercms
On-premWeb App
Web & CMS Plugins / cms-core
octobercmsoss-projectWeb & CMS Pluginsaka ckeditor4, ckeditor5

Exploitability

Official Patch Available

References

https://github.com/octobercms/october/security/advisories/GHSA-m5qg-jc75-4jp6
github.com

Timeline

Published
Apr 14, 2026
Last Updated
Apr 21, 2026

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