CVE-2026-85385

Concrete CMS below 9.5.4 did not validate the user timezone value uTimezone on write and rendered it without output encoding on the Dashboard user management page, where Date::getTimezoneDisplayName returns any non-IANA value unchanged. A stored cross-site scripting payload saved in this field...

EUVD-2026-80877

Concrete CMS below 9.5.4 did not validate the user timezone value uTimezone on write and rendered it without output encoding on the Dashboard user management page, where Date::getTimezoneDisplayName returns any non-IANA value unchanged. A stored cross-site scripting payload saved in this field...

CVE-2026-85385

Concrete CMS below 9.5.4 is affected by a stored cross-site scripting (XSS) vulnerability in the user timezone field (uTimezone). The root cause is that the value is not validated on write and is rendered without output encoding on the Dashboard user management page, where Date::getTimezoneDispla...