The The Cache Purger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2
The The Cache Purger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.3.20. 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 permanently truncate the plugin's cache-purge audit log (wp-content/purge.log), destroying the entire cache-purge audit history. The tcp_log_purge nonce is rendered in the admin bar on frontend pages accessible to all authenticated users including subscribers, meaning any authenticated user possesses the nonce required to trigger the deletion.
CVSS Score
4.3
MEDIUM
Published
16 Jul 2026 09:16
Modified
16 Jul 2026 14:16
Vendor
All
Source
CIRCL
CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Complexity
Low
Privileges
Low
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Weaknesses (CWE)
CWE-862
References
plugins.trac.wordpress.org
/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-admin.php
plugins.trac.wordpress.org
/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php
plugins.trac.wordpress.org
/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php
plugins.trac.wordpress.org
/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php
plugins.trac.wordpress.org
/changeset
www.wordfence.com
/threat-intel/vulnerabilities/id/5a9943b5-0f6d-4fbd-97eb-df61acd0c297