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CVE-2026-104901NVD
Vulnerability Summary
MISP contains a cross-site scripting (XSS) vulnerability in the ID Translator feature. When a user views the ID Translator page, the application queries linked (remote) MISP servers for corresponding event identifiers. The event ID returned by the remote server was rendered in the HTML output without proper output encoding.
A malicious or compromised linked server could return a crafted event ID containing arbitrary HTML or JavaScript markup. This markup would be rendered in the browser of any user in the host organization who views the ID Translator page, enabling session hijacking, credential theft, or other client-side attacks.
Preconditions:
- The victim must be an authenticated user of the host MISP instance.
- A linked server must be configured on the host instance.
- The victim must navigate to the ID Translator page for a given event.
Affected versions: <2.5.48.
A malicious or compromised linked server could return a crafted event ID containing arbitrary HTML or JavaScript markup. This markup would be rendered in the browser of any user in the host organization who views the ID Translator page, enabling session hijacking, credential theft, or other client-side attacks.
Preconditions:
- The victim must be an authenticated user of the host MISP instance.
- A linked server must be configured on the host instance.
- The victim must navigate to the ID Translator page for a given event.
Affected versions: <2.5.48.
CVSS v4.0 Base Metrics — Score 5.1 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionActive
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)None
Availability (Vulnerable System)None
Confidentiality (Subsequent System)Low
Integrity (Subsequent System)Low
Availability (Subsequent System)None
Affected & Patched Versions
- MISP MISP < 2.5.48
- MISP MISP 2.5.48