CVE-2026-103662Medium· 5.1▾ SunlitMISP contains a reflected cross-site scripting (XSS) vulnerability in the legacy taxonomy tag management confirmation forms (add tag and disable tag). The affected forms echoed a user-supplied tag name value from the request unescaped i…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 28.1 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
MISP contains a reflected cross-site scripting (XSS) vulnerability in the legacy taxonomy tag management confirmation forms (add tag and disable tag).
The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site administrator to visit a crafted URL containing a malicious tag name parameter can execute arbitrary JavaScript in the administrator's browser session.
Preconditions:
The target must be running a MISP instance with the legacy taxonomy tag confirmation views enabled.
The victim must be an authenticated site administrator.
The victim must navigate to the attacker-crafted URL (e.g., via a phishing link).
Security impact:
Execution of arbitrary client-side script in the context of the administrator's browser.
Potential theft of session tokens, CSRF tokens, or other sensitive data accessible from the page.
Potential for performing privileged actions on behalf of the administrator within the MISP interface.
Affected versions: <2.5.48.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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