CVE-2026-117533 REDAXO 5.18.0 before 5.21.4 Stored XSS via Unsanitized Mediapool SVG Uploads
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-117533?
CVE-2026-117533 is a low-severity vulnerability in redaxo core, published on 27 Oct 2026.
Official description
REDAXO from 5.18.0 before 5.21.4 contains a stored cross-site scripting vulnerability because rex_media_service moves uploaded SVG files into the public media folder before sanitizing them. Authenticated users with mediapool upload rights can race the sanitizer or exhaust memory limits to leave script-laden SVGs publicly served, executing scripts in victims' backend sessions.
Weakness: CWE-79
Which versions are affected by CVE-2026-117533?
How do I fix CVE-2026-117533?
No fix has been published for CVE-2026-117533 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-117533 being exploited?
There is no known exploitation of CVE-2026-117533 in the wild and no public exploit code.
Sources
Also known as GHSA-2p3g-jr7p-qwwx, GHSA-7mw4-9872-fvq7.