CVE Catalog

CVE-2025-66686

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.22%

13th percentile - higher than 13% of all known CVEs

Summary

A stored Cross-Site Scripting (XSS) vulnerability exists in Perch CMS version 3.2. An authenticated attacker with administrative privileges can inject malicious JavaScript code into the “Help button url” setting within the admin panel. The injected payload is stored and executed when any authenticated user clicks the Help button, potentially leading to session hijacking, information disclosure, privilege escalation, and unauthorized administrative actions.

Risk Assessment

This vulnerability could allow execution of malicious JavaScript in a victim's browser, risking session theft or privilege escalation. Organizations using Perch CMS are exposed to XSS attacks.

Recommendation

Update Perch CMS to a patched version or implement proper input encoding and validation in the “Help button url” setting. Consider restricting administrative privileges.

Related vulnerabilities

Original NVD description (English source)

A stored Cross-Site Scripting (XSS) vulnerability exists in Perch CMS version 3.2. An authenticated attacker with administrative privileges can inject malicious JavaScript code into the “Help button url” setting within the admin panel. The injected payload is stored and executed when any authenticated user clicks the Help button, potentially leading to session hijacking, information disclosure, privilege escalation, and unauthorized administrative actions.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS