VEXID-11407910
Published 2026-10-16 04:18:29
Last Modified 2026-10-21 03:17:18
AKA CVE-2026-111442
Summary Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 does not sufficiently validate uploaded SVG images to ensure they lack potentially dangerous SVG tags. SVG images can contain clickable links or executable scripting. By uploading a crafted SVG, it is possible to execute scripting in the browser when an SVG image is viewed. This issue is mitigated by the attacker needing to be able to upload SVG images, and that Backdrop embeds all uploaded SVG images within tags, which prevents script from executing. The SVG must be viewed directly by its URL in order to run any embedded scripting.
CVSS
Access Vector Local Adjacent Network
Access Complexity Low Medium High
Authentication None Single Multiple
Confidentiality None Partial Complete
Integrity None Partial Complete
Availability None Partial Complete