PT-2026-60442 · Kevp75 · The Cache Purger

Prism · CVE-2026-15350 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-15350

Affected Products

The Cache Purger

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-15350 · Security Note
• https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L223 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/5a9943b5-0f6d-4fbd-97eb-df61acd0c297?source=cve · Note
• https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-admin.php#L132 · Note
• https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L99 · Note
• https://plugins.trac.wordpress.org/browser/the-cache-purger/tags/2.3.03/work/inc/kp-cache-purge-common.php#L242 · Note
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3603867%40the-cache-purger&new=3603867%40the-cache-purger · Note