Is CVE-2026-76612 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-76612 being exploited in the wild.

How severe is CVE-2026-76612?

Informational severity, with a CVSS score of 6.1, published 21 August 2026.

Is there a fix for CVE-2026-76612?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-76612 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-76612?

Check whether you run YOOtheme Zoo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-76612: YOOtheme Zoo stored XSS in comments and user fields

CVE-2026-76612 · Severity: info · CVSS 6.1 · Published 2026-08-21

YOOtheme Zoo is a content management extension for Joomla that allows users to create and organize custom content types. An unauthenticated attacker can inject malicious JavaScript into comment fields and user-controlled form elements, which is stored in the database and executed in the browsers of other users viewing the affected content. This could lead to session hijacking, credential theft, or defacement of site content.

Technologies: YOOtheme Zoo. Vendors: YOOtheme.

Quick answers

Is CVE-2026-76612 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-76612 being exploited in the wild.
How severe is CVE-2026-76612?: Informational severity, with a CVSS score of 6.1, published 21 August 2026.
Which products and versions are affected?: YOOtheme Zoo < 4.1.66.
Is there a fix for CVE-2026-76612?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-76612 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-76612?: Check whether you run YOOtheme Zoo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a stored cross-site scripting (XSS) flaw in Zoo versions below 4.1.66. User-supplied input in comments and user-defined field elements is not properly sanitized or escaped before being stored and rendered. An unauthenticated attacker can craft malicious payloads that bypass input validation and are persisted in the database, then executed when other users view the affected content. The attack requires no authentication and can be triggered simply by submitting a comment or form via the web interface. A patch is available in Zoo 4.1.66 and later.

Affected products

YOOtheme Zoo < 4.1.66

Timeline

2026-08-21: disclosed

References

https://www.yootheme.com/

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