CVE-2025-66686 — MEDIUM (6.1)

Vulnerability Description

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.

CVSS Score

6.1

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Grabaperch	Perch	3.2

Related Weaknesses (CWE)

CWE-79

References

https://github.com/mertdurum06/Perch-v3.2Exploit
https://github.com/mertdurum06/Perch-v3.2/blob/main/Perch%20v3.2_Poc.txtExploitThird Party Advisory

FAQ

What is CVE-2025-66686?

CVE-2025-66686 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 u...

How severe is CVE-2025-66686?

CVE-2025-66686 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-66686?

Check the references section above for vendor advisories and patch information. Affected products include: Grabaperch Perch.