CVE-2026-94373

MISP contains a DOM-based cross-site scripting (XSS) vulnerability in the contextual menu JavaScript component. The ContextualMenu class populates HTML <option> elements by assigning user-controllable values to the innerHTML property. Because innerHTML parses and renders HTML markup, any untrusted string supplied as the option text (value.text or value) is interpreted as live DOM content rather than plain text. An attacker who can influence the data rendered in the contextual menu can inject arbitrary HTML or JavaScript that executes in the victim's browser within the MISP application origin. This may allow session hijacking, data exfiltration, or unauthorized actions performed on behalf of the authenticated user. Version affected: <2.5.47

CVSS

No CVSS.

References

Link	Resource
https://github.com/MISP/MISP/commit/b062698f2

Configurations

No configuration.

History

21 Sep 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 13:17

Updated : 2026-09-21 16:17

NVD link : CVE-2026-94373

Mitre link : CVE-2026-94373

CVE.ORG link : CVE-2026-94373

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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