CVE-2026-77996 Joomla Extension - yootheme.com - Authenticated, privileged stored XSS in YOOtheme Pro 1.0.0-5.0.41
Privileged users can inject malicious scripts via the location field, potentially leading to code execution or account takeover in Joomla sites using YOOtheme Pro.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77996?
CVE-2026-77996 is a high-severity cross-site scripting vulnerability in yootheme.com YOOtheme Pro extension for Joomla, published on 25 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Joomla Extension - yootheme.com - Authenticated, privileged stored XSS in YOOtheme Pro 1.0.0-5.0.41 - Lack of escaping in the location custom field lead to a XSS vector.
Weakness: CWE-79
Which versions are affected by CVE-2026-77996?
How do I fix CVE-2026-77996?
No fix has been published for CVE-2026-77996 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-2026-77996 being exploited?
There is no known exploitation of CVE-2026-77996 in the wild and no public exploit code.
Sources
Also known as GHSA-px6v-5f2p-p6xr.