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).
CVE-2026-50767
MEDIUMPre-NVD 5.45.4—Elevated
EchelonGraph scoreHIGH confidence
Score 5.4 from GitHub Security Advisory published 2026-06-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.4
- EG Score
- 5.4(high)
- EPSS
- 9.5%
- KEV
- Not listed
Published
June 26, 2026
Last Modified
July 5, 2026
Advisory Details (2)
Auto-updated Jun 29, 2026🔬 Proof of concept available. No patch confirmed yet.
Vendor Advisories for CVE-2026-50767(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(5)
What is CVE-2026-50767?
CVE-2026-50767 is a medium vulnerability published on June 26, 2026. 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…
When was CVE-2026-50767 disclosed?
CVE-2026-50767 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50767 actively exploited?
CVE-2026-50767 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50767?
CVE-2026-50767 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-50767?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50767, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-50767
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