CVE-2026-8977 json
WP GDPR Cookie Consent <= 1.0.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'ninja_gdpr_ajax_actions' AJAX Action
published 2026-06-09 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-35310
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- techjewel WP GDPR Cookie Consent
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/95c7f999-3676-4b91-9ee0-f55a27bcd93c?source=cve
- plugins.trac.wordpress.org /browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L169
- plugins.trac.wordpress.org /browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L7
- plugins.trac.wordpress.org /browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L86
- plugins.trac.wordpress.org /browser/wp-gdpr-cookie-consent/trunk/wp-gdpr-cookie-consent.php#L35
Sources
- CVE List CVE-2026-8977
- NVD CVE-2026-8977
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.