WordPress CVEs

Description

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.

Affected WordPress components

• The Cache Purger Plugin · the-cache-purger
  Confirmed match Active
  Up to and including 2.3.20
  View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

• kevp75 The Cache Purger — Up to and including 2.3.20

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-admin.php#L132
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L223
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L242
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L99
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3603867%40the-cache-purger&new=3603867%40the-cache-purger
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5a9943b5-0f6d-4fbd-97eb-df61acd0c297?source=cve
• nvd.nist.gov Official NVD record