CVE-2026-26378

5.4 MEDIUM

Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function i...

Published: 2026-06-03 · Last updated: 2026-06-04

Severity and scoring

CVSS: 5.4 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE: CWE-79

Affected products

Vendor	Product
koha	koha

Description

Cross Site Scripting vulnerability in Koha 25.11 and before allows a remote attacker to execute arbitrary code via file upload function in Invoice features

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-26378
[Other]https://g03m0n.github.io
[Exploit reference]https://g03m0n.github.io/posts/cve-2026-26378/
[Other]https://github.com/Koha-Community/Koha
[Exploit reference]https://g03m0n.github.io/posts/cve-2026-26378/

Related CVEs

Same vendor

CVE-2026-26379 — Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via the Z39.50/SRU server configuration (6.5 MEDIUM)

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