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
Published: 2026-05-07
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 11 May 2026 15:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


Thu, 07 May 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Misp
Misp misp
Vendors & Products Misp
Misp misp
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 07 May 2026 12:15:00 +0000

Type Values Removed Values Added
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
Title MISP core - Stored XSS in MISP template (old engine) element attribute type
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Green'}


cve-icon MITRE

Status: PUBLISHED

Assigner: CIRCL

Published:

Updated: 2026-05-07T14:57:26.231Z

Reserved: 2026-05-07T12:05:55.978Z

Link: CVE-2026-8080

cve-icon Vulnrichment

Updated: 2026-05-07T14:47:13.377Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-07T12:16:18.467

Modified: 2026-05-11T15:21:05.793

Link: CVE-2026-8080

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T15:30:06Z

Weaknesses