CVE-2026-8977
Description
The WP GDPR Cookie Consent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ninja_gdpr_ajax_actions' AJAX action in versions up to, and including, 1.0.0. This is due to missing capability and nonce checks on the handleAjaxCalls() function, combined with insufficient input sanitization on the gdprConfig values and missing output escaping in the generateCSS() function which echoes stored configuration values directly into a <style> block rendered on wp_head. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L169
- https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L7
- https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L86
- https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/wp-gdpr-cookie-consent.php#L35
- https://www.wordfence.com/threat-intel/vulnerabilities/id/95c7f999-3676-4b91-9ee0-f55a27bcd93c?source=cve
CWEs
CWE-79
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.