Executive Summary

CVE-2026-32539 is a high-priority SQL Injection vulnerability found in the WordPress PublishPress Revisions Plugin versions up to and including 3.7.23.

This vulnerability allows unauthenticated attackers to interact directly with the website’s database by injecting malicious SQL commands.

It is classified under OWASP Top 10 A3: Injection and has a critical CVSS severity score of 9.3.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can lead to unauthorized access to your website’s database by attackers without needing any privileges.

Potential impacts include data theft, data manipulation, and unauthorized control over sensitive information stored in the database.

Because of its critical severity and ease of exploitation, it poses a significant risk to website security and data integrity.

Useful 0 Not Useful 0

Mitigation Strategies

To mitigate the CVE-2026-32539 vulnerability immediately, users should update the WordPress PublishPress Revisions Plugin to version 3.7.24 or later.

Until the plugin is updated, it is recommended to use Patchstack's automatic mitigation rules which can block attacks targeting this vulnerability.

Patchstack also offers auto-update features for vulnerable plugins to help ensure rapid protection.

Useful 0 Not Useful 0

Compliance Impact

The CVE-2026-32539 vulnerability allows unauthenticated attackers to perform SQL Injection attacks, potentially leading to unauthorized access, theft, or manipulation of sensitive data stored in the affected WordPress PublishPress Revisions Plugin databases.

Such unauthorized data access and manipulation can result in violations of data protection regulations and standards like GDPR and HIPAA, which require the safeguarding of personal and sensitive information against unauthorized disclosure or alteration.

Therefore, if exploited, this vulnerability could compromise compliance with these regulations by exposing or altering protected data without proper authorization.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability is a Blind SQL Injection in the WordPress PublishPress Revisions Plugin versions up to 3.7.23, allowing unauthenticated attackers to interact with the database.

To detect this vulnerability on your system, you should first verify the plugin version installed on your WordPress site. If the version is 3.7.23 or earlier, the site is vulnerable.

You can check the plugin version by running the following command in the WordPress installation directory:

• grep 'Version' wp-content/plugins/publishpress-revisions/readme.txt

Alternatively, you can check the plugin version via WP-CLI with this command:

• wp plugin get publishpress-revisions --field=version

For network detection, monitoring HTTP requests for suspicious SQL injection patterns targeting the PublishPress Revisions plugin endpoints can help identify exploitation attempts.

Patchstack provides automatic mitigation rules that can be deployed to block attacks targeting this vulnerability until the plugin is updated.

The recommended action is to update the plugin to version 3.7.24 or later to eliminate the vulnerability.

Useful 0 Not Useful 0