CVE-2025-66026: REDAXO CMS is vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

November 25, 2025 (updated November 27, 2025)

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.

References

github.com/advisories/GHSA-x6vr-q3vf-vqgq
github.com/redaxo/redaxo
github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aa
github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq
nvd.nist.gov/vuln/detail/CVE-2025-66026

Code Behaviors & Features

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