CVE-2026-50767: Koha

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

A stored cross-site scripting (XSS) vulnerability in the item type administration page of Koha Library Management System 0 through 25.11 versions allow an authenticated remote attacker with administrator privileges to inject arbitrary web scripts via the item type check-in message field (checkinmsg).

Affected products

• Koha Koha: up to and including 25.11.00

Published 2026-06-26. Last modified 2026-07-05.