CVE-2026-77233

HighCVSS 7.2

Published: 05/09/2026(UTC)Updated: 08/09/2026(UTC)Translated: 05/09/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.29%

21th percentile - higher than 21% of all known CVEs

Summary

The iubenda | All-in-one Compliance plugin for WordPress up to version 3.13.4 is vulnerable to Stored Cross-Site Scripting via Comment Content via AdSense Regex Rewrite, but only when the 'Secondary' parser engine is active (parser_engine=default). Unauthenticated attackers can inject arbitrary web scripts that execute when a user accesses an injected page. This vulnerability does not exist under the default 'new' DOM-based parser engine.

Risk Assessment

The risk includes execution of malicious scripts in the victim's browser, potentially leading to session theft, admin account takeover, or malware distribution. The attack does not require authentication, but only in a specific parser engine configuration.

Recommendation

Update the iubenda plugin to the latest patched version. Also ensure the default parser engine is used to avoid the vulnerability.

Other vulnerabilities in iubenda | All-in-one Compliance

CVE-2026-77263High
The iubenda | All-in-one Compliance plugin for WordPress up to version 3.13.4 is vulnerable to Stored Cross-Site Scripting via Comment Content due to insufficient input sanitization and output escaping. Unauthenticated attackers can inject arbitrary web scripts that execute when a user accesses an injected page. The exploit works by embedding KSES-allowed markup such as abbr title attributes and HTML comments so that the global strtr() substitution mutates an inert tag into an executable element like an img onerror handler.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS