What is CVE-2026-50765?

CVE-2026-50765 is a medium-severity vulnerability in Koha, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-26.

How severe is CVE-2026-50765?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Koha

CVE-2026-50765

A stored cross-site scripting (XSS) vulnerability in the patron restriction type administration page of Koha Library Management System 0 through 25.11 versions allow an authenticated remote attacker with administrator privileges to inject…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Koha
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Not Applicable)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-50765?: CVE-2026-50765 is a medium-severity vulnerability in Koha, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-26.
How severe is CVE-2026-50765?: Medium severity. CVSS v3 base score is 6.1 out of 10.