CVE-2025-8999
MEDIUM
5.3
CVSS 3.1
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.
Affected WordPress components
-
Sydney Theme · sydneyUp to and including 2.56View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- athemes Sydney — Up to and including 2.56
References
- research.cleantalk.org https://research.cleantalk.org/cve-2025-8999/
- themes.trac.wordpress.org https://themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-modules.php#L166
- themes.trac.wordpress.org https://themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-modules.php#L72
- themes.trac.wordpress.org https://themes.trac.wordpress.org/changeset/288374/
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81ef-b5dd761a0c23?source=cve
- nvd.nist.gov Official NVD record