CVE-2025-69166 ThemeREX CVE debrief

Who should care

Users of Gunslinger theme version 1.7 or earlier should be aware of this vulnerability and take necessary actions to protect their installations. This includes updating to a version greater than 1.7 if available, restricting access to sensitive files and directories, and monitoring for suspicious activity related to file inclusion. Affected operators, platforms, vulnerability-management teams, and security teams should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance.

Technical summary

The vulnerability is an unauthenticated local file inclusion issue in the Gunslinger theme, affecting versions up to and including 1.7. This vulnerability has a CVSS score of 8.1, indicating high severity. The CVSS vector is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. The vulnerability allows an attacker to include local files without authentication, potentially leading to sensitive information disclosure or code execution.

Defensive priority

High priority due to high CVSS score and potential for exploitation.

Recommended defensive actions

• Update Gunslinger theme to a version greater than 1.7 if available.
• Restrict access to sensitive files and directories.
• Monitor for suspicious activity related to file inclusion.
• Consider implementing additional security measures such as web application firewalls.
• Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE record for CVE-2025-69166 was published on 2026-06-17T14:17:35.070Z and last modified on 2026-06-17T17:16:40.370Z. The NVD entry is currently Deferred. The vulnerability affects Gunslinger theme versions up to and including 1.7. Evidence of exploitation is not currently available. Defenders should verify the affected scope and severity based on official advisories.

Official resources