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CVE-2026-8080

MISP core - Stored XSS in MISP template (old engine) element attribute type

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.5.37
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in misp allows Stored XSS. This issue affects MISP before 2.5.37. A stored cross-site scripting vulnerability exists in the template element attribute handling logic. The application accepted arbitrary values for the TemplateElementAttribute type and category fields without validating them against the known MISP attribute type and category definitions. An attacker with permission to create or modify template element attributes could store a crafted type value. This affects the old templating (not more accessible in 2.5.37) engine from MISP which will be removed in 2.5.38

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 2.5.37

References 2

GitHub · MISP/MISP

GitHub · George0Papasotiriou/CVE-2026-8080-DKIM-Signature-Verification-Bypass-Header-Canonicalization-Flaw-