CVE-2025-66026

Name: CVE-2025-66026
Creator: NVD / NIST
Published: 2025-11-26T03:15:58.44+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-66026 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.23%

13.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Redaxo	Redaxo	< 5.20.1

References

https://github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aaPatch
https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgqExploit, Vendor Advisory
https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgqExploit, Vendor Advisory

Timeline

Published: Nov 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66026?

How severe is CVE-2025-66026?

CVE-2025-66026 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66026?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66026?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST