PT-2026-1860 · Perch · Perch Cms

Published 2026-01-07 · Updated 2026-01-21 · CVE-2025-66686

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Perch CMS version 3.2

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

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

LPE

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-66686

Affected Products

Perch Cms

References · 6

• 🔥 https://github.com/mertdurum06/Perch-v3.2/blob/main/Perch%20v3.2_Poc.txt · Exploit
• 🔥 https://github.com/mertdurum06/Perch-v3.2 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-66686 · Security Note
• https://osv.dev/vulnerability/CVE-2025-66686 · Vendor Advisory
• https://t.me/cveNotify/149485 · Telegram Post
• https://twitter.com/CVEnew/status/2008945928263090184 · Twitter Post