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TI-2025-41039 Aliases CVE-2025-66686GHSA-h38c-m43h-44mc

A stored Cross-Site Scripting (XSS) vulnerability exists in Perch CMS version 3.2.

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00224 13th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:grabaperch:perch:3.2:*:*:*:*:*:*:*3.2VulnerableGrabaperch
  • cpe:2.3:a:grabaperch:perch:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Grabaperch

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66686
  2. 2026-10-03 Alias added: GHSA-h38c-m43h-44mc

References

Exploit 2

  • TI-2023-30172 Perch CMS 3.2 Remote Code Execution via Unrestricted File Upload CVSS 4.0HIGH 8.6
  • TI-2023-30173 Perch CMS 3.2 Stored Cross-Site Scripting via SVG File Upload CVSS 4.0MEDIUM 5.1
  • TI-2017-11679 Perch Content Management System 3.0.3 allows unrestricted file upload (with resultant… CVSS 3.1MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences