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Vulnerability record · CVE-2026-83561 · published 18 September 2026

CVE-2026-83561: Cross-site scripting vulnerability

The Complianz GDPR/CCPA Cookie Consent Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via Elementor Cookie Blocker Regex in all versions up to, and including, 7.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires an administrator to approve the attacker's comment, and the site must have both the Elementor plugin installed and Complianz configured with the Twitter or Facebook cookie/script blocker enabled.

7.2 CVSS 3.1 High EPSS 0.51% · top 59.0% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
10References
18 Sep 2026Last modified by NVD

Description

The Complianz GDPR/CCPA Cookie Consent Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via Elementor Cookie Blocker Regex in all versions up to, and including, 7.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires an administrator to approve the attacker's comment, and the site must have both the Elementor plugin installed and Complianz configured with the Twitter or Facebook cookie/script blocker enabled.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/class-cookie-blocker.php#L458
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/class-cookie-blocker.php#L828
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/functions.php#L1232
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elementor.php#L188
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elementor.php#L206
https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elementor.php#L213
https://plugins.trac.wordpress.org/changeset/3686618/complianz-gdpr/trunk/integrations/plugins/elementor.php
https://plugins.trac.wordpress.org/changeset?reponame=&new=3686656%40complianz-gdpr%2Ftags%2F7.5.5&old=3674116%40complia
https://plugins.trac.wordpress.org/changeset?reponame=&new=3686656%40complianz-gdpr%2Ftrunk&old=3674116%40complianz-gdpr
https://www.wordfence.com/threat-intel/vulnerabilities/id/c53da813-0376-4c61-bfe0-fd8a2c946937?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-83561), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.