CVE-2026-13360: 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Ensure the 'Support Google Consent Mode (GCM)' setting remains disabled (it is disabled by default).
Cookie Banner for GDPR / CCPA – WPLP Cookie Consent (WordPress plugin) Support Google Consent Mode (GCM) = disabled - Configuration
Do not enable 'Support Google Consent Mode (GCM)' unless required, as successful exploitation requires this setting to be enabled.
Cookie Banner for GDPR / CCPA – WPLP Cookie Consent (WordPress plugin) Support Google Consent Mode (GCM) = disabled by default
Event History
Frequently Asked Questions
What is the severity of CVE-2026-13360?
CVE-2026-13360 has a severity rating of high with a score of 7.2.
How do I fix CVE-2026-13360?
To fix CVE-2026-13360, upgrade the Cookie Banner for GDPR / CCPA plugin to version 4.3.6 or later.
What type of vulnerability is CVE-2026-13360?
CVE-2026-13360 is an Authenticated Stored Cross-Site Scripting (XSS) vulnerability.
Which software is affected by CVE-2026-13360?
CVE-2026-13360 affects the Cookie Banner for GDPR / CCPA plugin on WordPress.
What can attackers do with CVE-2026-13360?
Attackers can exploit CVE-2026-13360 to execute arbitrary scripts in the context of the affected website.