CVE-2026-41921

Koha before 26.05.02, 25.11.07, and 25.05.13 contains a stored cross-site scripting vulnerability in the purchase suggestion handler that allows authenticated staff users to inject malicious scripts by submitting unsanitized input through the suggestion save operation. Attackers can supply crafted HTML or script content in fields such as title, author, isbn, publishercode, place, collectiontitle, itemtype, and note, which are stored without sanitization and later rendered in the suggestion list template, causing injected scripts to execute in the browser of any staff user who views the suggestions.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://koha-community.org/koha-25-05-13-released/
https://koha-community.org/koha-25-11-07-released/
https://koha-community.org/koha-26-05-02-released/
https://www.vulncheck.com/advisories/koha-stored-xss-via-purchase-suggestion-handler

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-18 21:16

Updated : 2026-08-31 20:37

NVD link : CVE-2026-41921

Mitre link : CVE-2026-41921

CVE.ORG link : CVE-2026-41921

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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