WP GDPR Cookie Consent <= 1.0.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'ninja_gdpr_ajax_actions' AJAX Action

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-8977
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-09 05:16:41 UTC
Updated2026-06-09 13:33:34 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.000320000 probability, percentile 0.100140000 (date 2026-06-13)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Techjewel WP GDPR Cookie Consent affected 1.0.0 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/95c7f999-3676-4b91-9ee0-f55a2... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/wp-gdpr-cookie-consent.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wp-gdpr-cookie-consent/trunk/Classes/GdprHandler.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Kishan Vyas (en)

CNA: Hardik Patel (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-08T15:05:04.000ZDisclosed
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