Cross-site Scripting Vulnerability in MISP by MISP Project
CVE-2026-8080

6.8MEDIUM

Key Information:

Vendor

Misp

Status
Misp
Vendor
CVE Published:
7 May 2026

What is CVE-2026-8080?

A stored cross-site scripting vulnerability exists in MISP that affects versions prior to 2.5.37. Due to improper validation of user input in the handling of template element attributes, an attacker with permission to create or modify these attributes can potentially store malicious script content. This flaw arises because the MISP application allows arbitrary values for certain fields without proper sanitization, creating opportunities for XSS attacks. It is important to note that this issue pertains to the old templating engine, which will be deprecated in future releases of MISP.

Affected Version(s)

misp 0 < 2.5.37

References

https://github.com/MISP/MISP/commit/62824e5ca0056d01b195f...
patch

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Luciano Righetti
Bjørn Helseth (TV 2 Norway)
.