XSS in Tassos.gr Advanced Custom Fields Extension For Joomla

CVE-2026-115452

Joomla Extension - tassos.gr - Privileged stored XSS in Advanced Custom Fields 2.8.2-2.8.15, 3.0.0-3.1.8 and Smile Pack 1.1.2-1.2.9, 2.0.0-2.1.6 - A user who could edit a Map marker label, like an article author, could add a script that ran for anyone who opened the marker.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (29.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-115452?
CVE-2026-115452 is a medium-severity vulnerability in Tassos.gr Advanced Custom Fields Extension For Joomla, classified under Cross-site Scripting. CVSS score: 6.7/10. Published 2026-11-05.
How severe is CVE-2026-115452?
Medium severity. CVSS v3 base score is 6.7 out of 10.