Complianz GDPR/CCPA Cookie Consent Banner <= 7.5.4 - Unauthenticated Stored Cross-Site Scripting via Elementor Cookie Blocker Regex
Summary
| CVE | CVE-2026-83561 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-18 09:16:42 UTC |
| Updated | 2026-09-18 13:23:37 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.2 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS: 0.002920000 probability, percentile 0.220650000 (date 2026-09-20)
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| 3.1 | CNA | DECLARED | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Complianz | Complianz GDPR/CCPA Cookie Consent Banner | affected 7.5.4 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elem... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/class-cookie-blocker.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/class-cookie-blocker.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elem... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/functions.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/complianz-gdpr/tags/7.5.3.1/integrations/plugins/elem... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset/3686618/complianz-gdpr/trunk/integrations/plugins/e... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/c53da813-0376-4c61-bfe0-fd8a2... | [email protected] | www.wordfence.com | |
| 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: theviper17y (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-08-31T19:06:15.000Z | Vendor Notified |
| CNA | 2026-09-17T20:28:29.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.