CIVI-SA-2026-25: Stored XSS in Tag Name

Published
2026-06-15 20:06
Written by

When viewing a contact or viewing the manage tags screen, the tag name and tag set names were not properly escaped.

Security Risk
Moderately Critical
Vulnerability
Cross Site Scripting
Affected Versions

CiviCRM v6.15.2 and earlier

Fixed Versions

CiviCRM v6.15.3, v6.10.7 (ESR), and later

Publication Date
Solutions

Upgrade to a fixed version of CiviCRM

Credits

Lassi (lassitemp@proton.me), Seamus Lee (JMA Consulting), Coleman Watts (CiviCRM)