Vulnerability Description
The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This makes it possible for authenticated attackers, with Subscriber-level access and above, to activate or deactivate various theme modules.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://research.cleantalk.org/cve-2025-8999/
- https://themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-m
- https://themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-m
- https://themes.trac.wordpress.org/changeset/288374/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81e
FAQ
What is CVE-2025-8999?
CVE-2025-8999 is a vulnerability with a CVSS score of 5.3 (MEDIUM). The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This ...
How severe is CVE-2025-8999?
CVE-2025-8999 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-8999?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.