SB2026041435 - Improper access control in October CMS

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Main Vulnerability Database SB2026041435

SB2026041435 - Improper access control in October CMS

Published: April 14, 2026

Security Bulletin ID SB2026041435
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: CVE-2024-51991)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to bypass SVG sanitization protections.

The vulnerability exists due to improper access control in the media manager rename functionality when renaming a previously uploaded file to the .svg extension. A remote user can upload a file with a permitted extension and later rename it to .svg to bypass SVG sanitization protections.

Only instances with the media.clean_vectors configuration enabled are vulnerable, and user interaction from another trusted user is required.


Remediation

Install update from vendor's website.

References