YARPP – Yet Another Related Posts Plugin <= 5.30.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Vulnerability Description
The YARPP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'className' parameter in versions up to, and including, 5.30.3 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-2433
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- István Márton
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/35bd7462-8dab-43b2-9941-fef6f826cfdc?source=cve
- https://plugins.trac.wordpress.org/browser/yet-another-related-posts-plugin/tags/5.30.3/classes/YARPP_Core.php#L1623
- https://plugins.trac.wordpress.org/changeset/2939617/yet-another-related-posts-plugin/trunk/classes/YARPP_Core.php
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