CVE-2026-8977 Cross-site scripting in WP GDPR Cookie Consent
Authenticated attackers can inject arbitrary scripts via stored XSS in the WP GDPR Cookie Consent plugin, affecting all users viewing the page.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8977?
CVE-2026-8977 is a medium-severity cross-site scripting vulnerability in techjewel WP GDPR Cookie Consent, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-8977?
How do I fix CVE-2026-8977?
No fix has been published for CVE-2026-8977 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-8977 being exploited?
There is no known exploitation of CVE-2026-8977 in the wild and no public exploit code.
Sources
Also known as GHSA-3vwc-x4cp-8232.