CVE-2026-26067 (GCVE-0-2026-26067)

Vulnerability from cvelistv5 – Published: 2026-04-21 16:16 – Updated: 2026-04-21 17:35
VLAI
Title
October: Safe Mode Bypass via CSS Preprocessor Compilers
Summary
October is a Content Management System (CMS) and web platform. Prior to 3.7.14 and 4.1.10, a server-side information disclosure vulnerability was identified in the handling of CSS preprocessor files. Backend users with Editor permissions could craft .less, .sass, or .scss files that leverage the compiler's import functionality to read arbitrary files from the server. This worked even with cms.safe_mode enabled. This vulnerability is fixed in 3.7.14 and 4.1.10.
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-21 17:35 UTC
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-184 - Incomplete List of Disallowed Inputs
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7861 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
octobercms october Affected: >= 4.0.0, < 4.1.10
Affected: < 3.7.14
guessed Create a notification for this product.
Show details on NVD website
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