CVE-2026-26377

MEDIUM
2026-03-05 [email protected]
5.4
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
PoC Detected
Mar 10, 2026 - 18:18 vuln.today
Public exploit code
CVE Published
Mar 05, 2026 - 16:16 nvd
MEDIUM 5.4

Tags

XSS Koha

Description

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

Analysis

Koha versions 25.11 and earlier contain a stored cross-site scripting vulnerability in the News function that allows authenticated users to inject malicious scripts affecting other users who view the compromised content. Public exploit code exists for this vulnerability, and attackers can leverage it to steal session data or perform actions on behalf of victims. …

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Remediation

Within 30 days: Identify affected systems running Koha 25.11 and and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +27
POC: +20

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CVE-2026-26377 vulnerability details – vuln.today
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