CVE-2026-26378

MEDIUM EPSS 21.6%
Published Jun 3, 20263w ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Jun 3, 2026 3w ago
Last Modified Jun 17, 2026 1w ago

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

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
21.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
kohakoha* ≤25.11.00

References 3

  • g03m0n.github.io https://g03m0n.github.io
    Third Party Advisory
  • g03m0n.github.io https://g03m0n.github.io/posts/cve-2026-26378/
    ExploitThird Party Advisory
  • github.com https://github.com/Koha-Community/Koha
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.