CVE-2026-77027 Joomla Extension - fabrikar.com - Unauthenticated stored XSS in Fabrik < 4.7.2
Unauthenticated attackers can inject malicious scripts via the jsactions feature, potentially hijacking user sessions or executing code in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-77027?
CVE-2026-77027 is a high-severity cross-site scripting vulnerability in fabrikar.com Fabrik extension for Joomla, published on 22 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Joomla Extension - fabrikar.com - Unauthenticated stored XSS in Fabrik < 4.7.2 - The handling of user supplied input in the jsactions feature leads to an stored XSS vector.
Weakness: CWE-79
Which versions are affected by CVE-2026-77027?
How do I fix CVE-2026-77027?
No fix has been published for CVE-2026-77027 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-2026-77027 being exploited?
There is no known exploitation of CVE-2026-77027 in the wild and no public exploit code.
Sources
Also known as GHSA-6qpp-c447-xw82.