Cookie Banner for GDPR / CCPA <= 4.3.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'regionArray' Parameter
The Cookie Banner for GDPR / CCPA – WPLP Cookie Consent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'regionArray' parameter in all versions up to, and including, 4.3.5 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 that the site administrator has enabled the 'Support Google Consent Mode (GCM)' setting, which is disabled by default. Additionally, the AJAX handler performs no nonce or capability check, allowing any authenticated user including those with Subscriber-level access to overwrite the affected plugin setting.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode | <= 4.3.5 | 4.4.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode- Disclosed
- 14.08.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - bba8007f-7254-4201-8f94-7bf921a33a27 - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Wordfence Intelligence - Defiant, Inc. Copyright Defiant, Inc. All rights reserved except as granted below. License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026): Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy. Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Vulnerability history: WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 28
- First → latest
- 03.2022 10.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 6
- Medium 20
Disclosures per year
- 2022: 1
- 2023: 1
- 2024: 3
- 2025: 5
- 2026: 18
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Cookie Banner for GDPR / CCPA <= 4.3.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'regionArray' Parameter this entry
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