CVE-2026-95661

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

MEDIUM
5.1
CVSS Score
Published: September 22, 2026 at 12:54 PM UTC
Updated: September 22, 2026 at 04:18 PM UTC
1 product affected across 1 vendorMISP

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5.47
Affected range stops below 2.5.47, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMCIRCL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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