CVE-2026-94277

Medium

Description

MISP's galaxy matrix statistics view (app/View/Users/statistics_galaxymatrix.ctp) renders the galaxy name directly into HTML output via sprintf() without any HTML encoding. An authenticated user holding the perm_galaxy_editor permission can create or modify a galaxy whose name contains arbitrary HTML or JavaScript markup. Because the value is interpolated verbatim into the page, any user who subsequently opens the galaxy matrix statistics page will have the embedded script executed in their browser context. This enables session hijacking, credential theft, data exfiltration, or the performance of arbitrary actions on behalf of the victim within the MISP application. Version affected: <2.5.47

SeverityMedium
CVSS6.3
Exploit probability—
ProductMISP
PublishedSep 21, 2026
First seenSep 21, 2026

How to fix

Update
  • MISP MISP2.5.47 or later

Affected products

ProductAffected versionsFixed in
MISP MISPv < 2.5.472.5.47

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