Cache Purger Plugin up to 2.3.20 on WordPress Audit Log wp-content/purge.log authorization

Summaryinfo

A vulnerability described as critical has been identified in Cache Purger Plugin up to 2.3.20. The impacted element is an unknown function of the file wp-content/purge.log of the component Audit Log. Such manipulation leads to authorization. This vulnerability is documented as CVE-2026-15350. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cache Purger Plugin up to 2.3.20. Affected by this issue is an unknown code block of the file wp-content/purge.log of the component Audit Log. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-15350 since 07/09/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/16/2026).

By approaching the search of inurl:wp-content/purge.log it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Name

• Cache Purger Plugin

Version

• 2.3.0
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7
• 2.3.8
• 2.3.9
• 2.3.10
• 2.3.11
• 2.3.12
• 2.3.13
• 2.3.14
• 2.3.15
• 2.3.16
• 2.3.17
• 2.3.18
• 2.3.19
• 2.3.20

CPE 2.3info

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CPE 2.2info

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