Description
The Themify Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.7.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite or delete the generated CSS stylesheet file of arbitrary posts, including private and draft posts owned by other users, and modify plugin-scoped font options. The required CSRF nonce (tf_nonce) is emitted on public front-end builder pages via wp_localize_script, making it trivially obtainable by any authenticated user visiting such a page.
References10
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.5/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.5/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.5/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.5/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.7/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.7/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.7/c…
- plugins.trac.wordpress.org/browser/themify-builder/tags/7.7.7/c…
- plugins.trac.wordpress.org/changeset?reponame=&old=3607906%40th…
- www.wordfence.com/threat-intel/vulnerabilities/id/b59e2773-31f0…
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - EPSS — exploit probability
- 0% percentile: 41 · as of 15 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.