How severe is CVE-2026-50765?

CVE-2026-50765 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-50765 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-50765?

CVE-2026-50765 affects Koha. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-50765?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-50765 published?

CVE-2026-50765 was published on 2026-06-26 and last updated on 2026-07-05.

CVE-2026-50765

CVE-2026-50765 is a medium-severity vulnerability in Koha with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Koha
Published: 2026-06-26
Last modified: 2026-07-05

Description

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 arbitrary web scripts via the restriction type label (display_text field).

Frequently asked questions

What is 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 arbitrary web scripts via the restriction type label (display_text field).
How severe is CVE-2026-50765?: CVE-2026-50765 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-50765 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-50765?: CVE-2026-50765 affects Koha. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-50765?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-50765 published?: CVE-2026-50765 was published on 2026-06-26 and last updated on 2026-07-05.

References

https://lgnas.gitbook.io/findings/cve-2026-50765

Affected products (1)

cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*

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