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VULNERABILITIES

CVE-2026-41921 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://koha-community.org/koha-25-05-13-released/ [email protected]
https://koha-community.org/koha-25-11-07-released/ [email protected]
https://koha-community.org/koha-26-05-02-released/ [email protected]
https://www.vulncheck.com/advisories/koha-stored-xss-via-purchase-suggestion-handler [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-41921
NVD Published Date:
Aug 18, 2026
NVD Last Modified:
Aug 31, 2026
Source:
[email protected]
CVE-2026-41921 Details - Not Deferred