CVE-2026-8977
WP GDPR Cookie Consent <= 1.0.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'ninja_gdpr_ajax_actions' AJAX Action
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.
INFO
Published Date :
June 9, 2026, 5:16 a.m.
Last Modified :
July 23, 2026, 8:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-8977
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the WP GDPR Cookie Consent plugin.
- Ensure capability and nonce checks are implemented.
- Sanitize input values for gdprConfig.
- Escape output values in generateCSS() function.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-8977.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-8977 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-8977
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8977 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-8977 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Jul. 23, 2026
Action Type Old Value New Value Added Translation Title: plugin de WordPress GDPR Cookie Consent, Description: El plugin WP GDPR Cookie Consent para WordPress es vulnerable a Cross-Site Scripting Almacenado a través de la acción AJAX 'ninja_gdpr_ajax_actions' en versiones hasta, e incluyendo, la 1.0.0. Esto se debe a la falta de comprobaciones de capacidad y nonce en la función handleAjaxCalls(), combinado con una sanitización de entrada insuficiente en los valores gdprConfig y la falta de escape de salida en la función generateCSS() que hace eco de los valores de configuración almacenados directamente en un bloque <style> renderizado en wp_head. Esto hace posible que atacantes autenticados, con acceso de nivel de suscriptor y superior, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'techjewel', 'product': 'WP GDPR Cookie Consent', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.0.0'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-8977', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-09T13:26:22.573127Z'} -
New CVE Received by [email protected]
Jun. 09, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L169 Added Reference https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L7 Added Reference https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php#L86 Added Reference https://plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/wp-gdpr-cookie-consent.php#L35 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/95c7f999-3676-4b91-9ee0-f55a27bcd93c?source=cve