What’s Vulnerable › Vulnerabilities
CVE-2026-8080: MISP core - Stored XSS in MISP template (old engine) element attribute type
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-07 · updated 2026-06-22
- Weakness: CWE-79
Description
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
Affected products
- MISP: before 2.5.37 — fixed in 2.5.37
How to fix
Upgrade to a fixed version: MISP 2.5.37. Check the vendor advisory for mitigations.
References
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