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.
Published: 2026-03-10
Score: 4.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-m6hv-x64c-27mm copyparty: volflag `nohtml` did not block javascript in svg files
History

Fri, 13 Mar 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:*

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:

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 : Analyzed

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

Modified: 2026-03-13T20:14:44.720

Link: CVE-2026-30974

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-11T11:44:45Z

Weaknesses