CVE-2026-76564 Joomla Extension - phoca.cz - Stored XSS via User-Agent header in Admin Order View in Phoca Cart 5.0.0-6.1.7
Stored XSS in Phoca Cart allows attackers to execute scripts in the admin order view via the User-Agent header, risking admin account takeover.
- 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-2026-76564?
CVE-2026-76564 is a high-severity cross-site scripting vulnerability in phoca.cz Phoca Cart extension for Joomla, published on 20 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 - phoca.cz - Stored XSS via User-Agent header in Admin Order View in Phoca Cart 5.0.0-6.1.7
Weakness: CWE-79
Which versions are affected by CVE-2026-76564?
How do I fix CVE-2026-76564?
No fix has been published for CVE-2026-76564 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-2026-76564 being exploited?
There is no known exploitation of CVE-2026-76564 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-98mw-pj3j-99v2.