---
id: CVE-2026-8080
title: >-
  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 t…
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 t…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-05-07'
updated: '2026-06-22'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-8080'
references:
  - url: >-
      https://github.com/MISP/MISP/commit/62824e5ca0056d01b195f70466ea0d382cca06d0
    label: 5a6e4751-2f3f-4070-9419-94fb35b644e8
tags:
  - nvd
  - exploit-available
epss: 0.00139
epssPercentile: 0.03678
ingestedAt: '2026-06-29T13:24:34.838Z'
exploits:
  github: 1
  githubRepos:
    - >-
      https://github.com/George0Papasotiriou/CVE-2026-8080-DKIM-Signature-Verification-Bypass-Header-Canonicalization-Flaw-
  checkedAt: '2026-09-24T07:53:18.919Z'
exploitAvailable: true
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.