Moderate severityNVD Advisory· Published Nov 26, 2025· Updated Nov 26, 2025
REDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]
CVE-2025-66026
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
redaxo/sourcePackagist | < 5.20.1 | 5.20.1 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-x6vr-q3vf-vqgqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-66026ghsaADVISORY
- github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aaghsax_refsource_MISCWEB
- github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgqghsax_refsource_CONFIRMWEB
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