techjewel WP GDPR Cookie Consent Plugin up to 1.0.0 on WordPress Configuration handleAjaxCalls gdprConfig cross site scripting

Summaryinfo

A vulnerability was found in techjewel WP GDPR Cookie Consent Plugin up to 1.0.0 on WordPress. It has been declared as problematic. This vulnerability affects the function handleAjaxCalls of the component Configuration Handler. The manipulation of the argument gdprConfig results in cross site scripting. This vulnerability was named CVE-2026-8977. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in techjewel WP GDPR Cookie Consent Plugin up to 1.0.0 on WordPress. It has been classified as problematic. Affected is the function handleAjaxCalls of the component Configuration Handler. The manipulation of the argument gdprConfig with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

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 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.

The weakness was presented by Kishan Vyas and Hardik Patel. The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-8977 since 05/19/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• techjewel

Name

• WP GDPR Cookie Consent Plugin

Version

• 1.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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