CVE-2026-22692 — October CMS: Twig Sandbox Bypass via Collection Methods

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.

Published Apr 14, 2026Updated Apr 14, 2026Sources: cvelistV5, GitHub_M

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Exploit code

public exploit, none observed

EPSS

chance of exploitation in 30 days

Affects

octobercms

october

CVSS base

4.9

MEDIUM

CISA SSVC assessment

Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.

CISA

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script all four kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Affected scope

The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.

Vendors (1)

octobercms

Products (1)

october

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
4.9	CVSS 3.1	MEDIUM	—	—	cvelistV5

Weakness & attack patterns

CWE-693
CWE-284

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

T1574.010Hijack Execution Flow: ServicesFile Permissions Weakness
T1083File and Directory Discovery
T1574.005Hijack Execution Flow: Executable Installer File Permissions Weakness

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Indexed by

poc in github

References

1 on the record

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

Elsewhere on this site

octobercmsevery CVE for this vendor
CWE-693other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.