beets is Vulnerable to XSS_CVE-2026-42052

6 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Description

Beets is the media library management system. Prior to version 2.10.0, the bundled web UI uses Underscore template interpolation mode <%= ... %> for untrusted metadata fields. In this runtime, <%= ... %> is raw insertion and HTML escaping is only performed by <%- ... %>. Rendered output is then inserted with .html(...), allowing attacker-controlled markup to become active DOM. This issue has been patched in version 2.10.0.

Basic Information

ID CVE-2026-42052

Source GitHub_M

Published May 4, 2026 at 17:06

Affected Product

Vendor beetbox

Product beets

Version < 2.10.0

Affected Versions beetbox beets < 2.10.0

CWE Classification

CWE-79

References

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    "published": "2026-05-04T17:06:23.162Z",
    "modified": "2026-05-04T17:06:23.162Z",
    "type": "cve",
    "title": "beets is Vulnerable to XSS",
    "source": "GitHub_M",
    "references": "https://github.com/beetbox/beets/security/advisories/GHSA-3gxm-wfjx-m847\nhttps://github.com/beetbox/beets/releases/tag/v2.10.0",
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