{"id":"CVE-2025-8999","aliases":["EUVD-2025-29712","GHSA-8p5x-g3gq-fwxp"],"status":"published","title":"Sydney \u003c= 2.56 - Missing Authorization to Authenticated (Subscriber+) Limited Theme Options Update","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00281,"percentile":0.20887,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2025-09-17T11:25:55Z","modified":"2026-09-26T00:10:00Z","products":[{"vendor":"athemes","product":"sydney"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81ef-b5dd761a0c23?source=cve"},{"url":"https://themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-modules.php#L166"},{"url":"https://themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-modules.php#L72"},{"url":"https://themes.trac.wordpress.org/changeset/288374/"},{"url":"https://research.cleantalk.org/cve-2025-8999/"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8999"},{"url":"https://themes.trac.wordpress.org/changeset/288374"},{"url":"https://research.cleantalk.org/cve-2025-8999"},{"url":"https://github.com/advisories/GHSA-8p5x-g3gq-fwxp"}],"sources":{"cve":[{"id":"CVE-2025-8999","title":"Sydney \u003c= 2.56 - Missing Authorization to Authenticated (Subscriber+) Limited Theme Options Update","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.","status":"published","published":"2025-09-17T11:25:55.832Z","modified":"2026-04-08T17:10:13.08Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:32:38.351095Z"}],"euvd":[{"id":"EUVD-2025-29712","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.","status":"published","published":"2025-09-17T11:25:55Z","modified":"2026-04-08T17:10:13Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:48.525699Z"}],"ghsa":[{"id":"GHSA-8p5x-g3gq-fwxp","title":"The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a...","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.","status":"published","published":"2025-09-17T12:30:58Z","modified":"2026-04-08T18:35:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:07:18.583007Z"}],"nvd":[{"id":"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.","status":"published","published":"2025-09-17T12:15:38.76Z","modified":"2026-09-26T00:10:00.127Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:11:29.650057Z"}]}}