CVE-2026-77233
Received Received - Intake

Stored XSS in iubenda WordPress Plugin via Comment Content

Publication date: 2026-09-05

Last updated on: 2026-09-05

Assigner: Wordfence

Description
The iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via AdSense Regex Rewrite in all versions up to, and including, 3.13.4 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. This vulnerability only manifests when the 'Secondary' parser engine is active (parser_engine=default); it does not exist under the default 'new' DOM-based parser engine.

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Meta Information

Published
2026-09-05
Last Modified
2026-09-05
Generated
2026-09-05
AI Q&A
2026-09-05
EPSS Evaluated
N/A
NVD
CVE-2026-77233
EUVD
EUVD-2026-71842

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
iubenda all-in-one_compliance_for_gdpr_ccpa_cookie_consent to 3.13.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the iubenda WordPress plugin. It allows unauthenticated attackers to inject malicious scripts into comment content via AdSense Regex Rewrite. The scripts execute when users access infected pages, but only if the Secondary parser engine is active.

Impact Analysis

Attackers could steal user sessions, redirect visitors to malicious sites, or deface your website. Users may have their data compromised if they interact with the injected scripts. The impact depends on the privileges of the affected user.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by exposing user data through XSS attacks. GDPR requires protecting user data, and HIPAA mandates safeguarding health information. A breach could result in legal penalties and reputational damage.

Mitigation Strategies

Update the iubenda plugin to the latest version beyond 3.13.4 to ensure the vulnerability is patched. Disable the 'Secondary' parser engine if not required, as the vulnerability only manifests when this engine is active.

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