WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode <= 4.4.6 - Unauthenticated Reflected Cross-Site Scripting via Script Blocker Placeholder Tokens
- ID
- WPSEC-2026-0817
- Plugin
- WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode (gdpr-cookie-consent)
- Affected
- all versions before 4.4.7
- Remediation
- Update to 4.4.7 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-13
- Attack surface
- WPLP Cookie Consent – Cookie Banner & Consent Management for GDPR, CCPA & Google Consent Mode on WPSec AttackSurface
- Fix released
- Published
Description
The WPLP Cookie Consent plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the script blocker's output buffer processing in all versions up to, and including, 4.4.6. This is due to the plugin turning the fixed placeholder token '_LT_' back into '<' (and '_NL_'/'_RNL_' into line breaks) everywhere in the front-end page output, so user-controlled text that the page prints already escaped, such as a search term, can become HTML markup. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that run if they can trick a user into clicking a crafted link. The script blocker must be enabled.
References
- https://wpsec.com/vuln/WPSEC-2026-0817/
- https://plugins.svn.wordpress.org/gdpr-cookie-consent/tags/4.4.7/
- https://wordpress.org/plugins/gdpr-cookie-consent/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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