Medium severity5.3NVD Advisory· Published Sep 17, 2025· Updated Jun 17, 2026
CVE-2025-8999
CVE-2025-8999
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- research.cleantalk.org/cve-2025-8999/nvd
- themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-modules.phpnvd
- themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-modules.phpnvd
- themes.trac.wordpress.org/changeset/288374/nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81ef-b5dd761a0c23nvd
News mentions
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