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 breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected products
- athemes / Sydney0 – 2.56
References
- MISChttps://www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81ef-b5dd761a0c23?source=cve
- MISChttps://themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-modules.php#L166
- MISChttps://themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-modules.php#L72
- MISChttps://themes.trac.wordpress.org/changeset/288374/
- MISChttps://research.cleantalk.org/cve-2025-8999/