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PatchSiren cyber security CVE debrief

CVE-2025-69166 ThemeREX CVE debrief

CVE-2025-69166 is a HIGH severity vulnerability with a CVSS score of 8.1, affecting Gunslinger theme versions up to and including 1.7. It allows unauthenticated local file inclusion. The vulnerability has a CVSS vector of CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Users of Gunslinger theme version 1.7 or earlier should be aware of this vulnerability and take necessary actions to protect their installations. The vulnerability is considered high priority due to its high CVSS score and potential for exploitation.

Vendor
ThemeREX
Product
Gunslinger
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-09-30
Advisory published
2026-06-17
Advisory updated
2026-09-30

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.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-69166 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-69166

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-69166 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-69166

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.