FKIE_CVE-2026-25133

Vulnerability from fkie_nvd - Published: 2026-04-14 21:16 - Updated: 2026-04-23 17:50
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Summary
October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting (XSS) vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes (such as onclick or onload) could be bypassed using a crafted payload that exploits how the pattern matches attribute boundaries, allowing malicious SVG files to be uploaded through the Media Manager with embedded JavaScript. Exploitation could lead to privilege escalation if a superuser views or embeds the malicious SVG, and requires authenticated backend access with media upload permissions. The SVG must be viewed or embedded in a page for the payload to trigger. This issue has been fixed in versions 3.7.14 and 4.1.10.
References
security-advisories@github.comhttps://github.com/octobercms/october/security/advisories/GHSA-gcqv-f29m-67grVendor Advisory
Impacted products
Vendor Product Version
octobercms october *
octobercms october *
To clipboard 

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  "id": "CVE-2026-25133",
  "lastModified": "2026-04-23T17:50:17.983",
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