What is CVE-2026-76564?

CVE-2026-76564 is a vulnerability in Phoca.cz Phoca Cart Extension For Joomla, classified under Cross-site Scripting. Published 2026-08-20.

Is CVE-2026-76564 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Phoca.cz Phoca Cart Extension For Joomla

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

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-08-20 · last modified 2026-08-26.

EPSS exploit prediction

EPSS: 0.004 (35.7th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Phoca.cz Phoca Cart Extension For Joomla — versions 5.0.0-6.1.7

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

toanln-cov/CVE-2026-76564

References

www.phoca.cz/phocacart (product)

Frequently asked questions

What is CVE-2026-76564?: CVE-2026-76564 is a vulnerability in Phoca.cz Phoca Cart Extension For Joomla, classified under Cross-site Scripting. Published 2026-08-20.
Is CVE-2026-76564 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.