XSS in Complianz Gdpr/ccpa Cookie Consent Banner

CVE-2026-83561

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.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-83561?
CVE-2026-83561 is a high-severity vulnerability in Complianz Gdpr/ccpa Cookie Consent Banner, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-09-18.
How severe is CVE-2026-83561?
High severity. CVSS v3 base score is 7.2 out of 10.