CVE-2025-66026

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter args[types] is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in. This issue has been patched in version 5.20.1.

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2025-11-26

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• redaxo:redaxo

References

• https://github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aa
• https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq
• https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq

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