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CVE-2026-95661

MISP Reflected Cross-Site Scripting in Attribute Histogram via Unescaped URL-Supplied Type List

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.5.47
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

MISP contains a reflected cross-site scripting (XSS) vulnerability in the attribute histogram view. The $selectedTypes variable, which is derived from the URL path segment , was interpolated directly into a JavaScript array literal inside an onClick HTML attribute without any encoding or escaping. An attacker who can cause an authenticated MISP user to visit a crafted URL containing a malicious type value can execute arbitrary JavaScript in the victim's browser within the MISP application origin. Successful exploitation allows the attacker to read session cookies, perform actions on behalf of the victim, or exfiltrate sensitive data accessible from the MISP interface.  The vulnerability requires the victim to be authenticated and to actively navigate to the attacker-supplied URL.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • MISP MISP

    fixed in 2.5.47

References 1

GitHub · MISP/MISP