Copyparty is a portable file server. Prior to v1.20.11., the nohtml config option, intended to prevent execution of JavaScript in user-uploaded HTML files, did not apply to SVG images. A user with write-permission could upload an SVG containing embedded JavaScript, which would execute in the context of whichever user opens it. This has been fixed in v1.20.11.
History

Wed, 11 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 11 Mar 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared 9001
9001 copyparty
Vendors & Products 9001
9001 copyparty

Tue, 10 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
Description Copyparty is a portable file server. Prior to v1.20.11., the nohtml config option, intended to prevent execution of JavaScript in user-uploaded HTML files, did not apply to SVG images. A user with write-permission could upload an SVG containing embedded JavaScript, which would execute in the context of whichever user opens it. This has been fixed in v1.20.11.
Title Copyparty volflag `nohtml` did not block javascript in svg files
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-10T17:37:26.214Z

Updated: 2026-03-11T14:45:33.773Z

Reserved: 2026-03-07T17:53:48.816Z

Link: CVE-2026-30974

cve-icon Vulnrichment

Updated: 2026-03-11T14:45:27.811Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-10T18:18:56.220

Modified: 2026-03-11T13:53:20.707

Link: CVE-2026-30974

cve-icon Redhat

No data.