GD Rating System <= 3.6.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via extra_class Parameter
Vulnerability Description
The GD Rating System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘extra_class’ parameter in all versions up to, and including, 3.6.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, 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?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Peter Thaleikis
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/66cad18d-a433-47f1-9cb6-c619c8717a0d?source=cve
- https://plugins.trac.wordpress.org/browser/gd-rating-system/tags/3.6.1/d4plib/plugin/d4p.shortcodes.php#L63
- https://wordpress.org/plugins/gd-rating-system/#developers
- https://plugins.trac.wordpress.org/changeset/3189622/
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