CVE-2026-104906

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Source

https://cve.org/CVERecord?id=CVE-2026-104906

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104906.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-104906

Published

2026-10-02T15:49:32Z

Modified

2026-10-04T02:46:02Z

Severity

6.2 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator

Summary

MISP TAXII Object Viewer Stored XSS via Unescaped JSON Output

Details

MISP contains a cross-site scripting (XSS) vulnerability in the TAXII object viewer. When displaying a remote TAXII object, the JSON content of string properties was rendered directly into an HTML pre block without HTML-encoding. An attacker who can control or influence the content of a TAXII object (e.g., by publishing a malicious object to a TAXII server that the victim's MISP instance subscribes to) can inject arbitrary HTML or JavaScript that executes in the context of the victim's MISP session.

Preconditions:

The victim must be an authenticated MISP user with access to the TAXII object viewer.
The victim must open or view the crafted TAXII object.

Impact:

Execution of arbitrary JavaScript in the victim's browser within the MISP application context.
Potential theft of session tokens, API keys, or other sensitive data accessible from the MISP interface.
Potential for performing actions on behalf of the authenticated user.

Affected versions: <2.5.48.

Database specific

{
    "cna_assigner": "CIRCL",
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104906.json"
}

References

Affected packages

Git / github.com/misp/misp

Affected ranges

Type

GIT

Repo

https://github.com/misp/misp

Events

Introduced

Fixed

1bed4ca0c

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.5.48"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104906.json"