CVE-2026-77233 Cross-site scripting in iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more
Unauthenticated attackers can inject arbitrary scripts via comment content when the secondary parser engine is active, leading to stored XSS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77233?
CVE-2026-77233 is a high-severity cross-site scripting vulnerability in iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more, published on 5 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-77233?
How do I fix CVE-2026-77233?
No fix has been published for CVE-2026-77233 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-77233 being exploited?
There is no known exploitation of CVE-2026-77233 in the wild and no public exploit code.
Sources
Also known as GHSA-63mm-gwfc-cmcq.