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Medium

MISP Stored Cross-Site Scripting via Unvalidated Galaxy Icon Field in Correlation Graph

Type: advisorySource: Official CVE List1 source record

MISP contains a stored cross-site scripting (XSS) vulnerability in the galaxy icon handling path. The icon field of a galaxy object was persisted without any server-side validation through the galaxy add, edit, and sync/import capture endpoints. The stored value was subsequently concatenated directly into HTML markup by the D3-based correlation graph rendering scripts (both the default and Overmind themes) using the .html() method. A user holding the perm_galaxy_editor permission, which is granted to the stock User role, could store arbitrary HTML or JavaScript in the icon field. Any other user who opened the correlation graph of an event containing a cluster belonging to that galaxy would have the injected script executed in their browser session. Impact: - Arbitrary script execution in the context of the victim's MISP session - Potential theft of session credentials, manipulation of displayed data, or initiation of actions on behalf of the victim - Affects both the default and Overmind UI themes Affected versions: <2.5.48

Announced Source revision 1
Original source ↗

CVE-2026-103389

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-103389

MISP

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*"
    ],
    "repo": "https://github.com/MISP/MISP",
    "vendor": "MISP",
    "modules": [
      "Galaxy model",
      "Correlation Graph (default theme)",
      "Correlation Graph (Overmind theme)",
      "Galaxy sync/import capture"
    ],
    "product": "MISP",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "2.5.48",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "app/Model/Galaxy.php",
      "app/Lib/Tools/CorrelationGraphTool.php",
      "app/webroot/js/correlation-graph.js",
      "app/webroot/js/correlation-graphOvermind.js"
    ]
  }
]
Related CVEs
CVE-2026-103389

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#4492 · Revision 1
Added to Heist Feed
Publisher date
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