The extension fails to validate a client-supplied template element key before using it to build file paths for saving and deleting Mask template files. An authenticated backend user with access to the Mask module can supply a key containing path traversal sequences to create or delete .html files outside the configured template directory.
History

Tue, 25 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 25 Aug 2026 09:15:00 +0000

Type Values Removed Values Added
Description The extension fails to validate a client-supplied template element key before using it to build file paths for saving and deleting Mask template files. An authenticated backend user with access to the Mask module can supply a key containing path traversal sequences to create or delete .html files outside the configured template directory.
Title Path Traversal in extension "Mask" (mask)
Weaknesses CWE-22
CWE-73
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published: 2026-08-25T09:00:37.199Z

Updated: 2026-08-25T14:04:39.871Z

Reserved: 2026-08-20T13:10:15.962Z

Link: CVE-2026-77139

cve-icon Vulnrichment

Updated: 2026-08-25T14:04:36.776Z

cve-icon NVD

Status : Deferred

Published: 2026-08-25T09:17:34.647

Modified: 2026-08-26T17:13:53.420

Link: CVE-2026-77139

cve-icon Redhat

No data.