CVE-2026-30974 | THREATINT

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 Reserved 2026-03-07 | Published 2026-03-10 | Updated 2026-03-11 | Assigner GitHub_M

MEDIUM: 4.6CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 1.20.11

affected

References

github.com/...yparty/security/advisories/GHSA-m6hv-x64c-27mm

github.com/...ommit/1c9f894e149b6be3cc7de81efc93a4ce4766e0e5

github.com/9001/copyparty/releases/tag/v1.20.11

cve.org (CVE-2026-30974)

nvd.nist.gov (CVE-2026-30974)

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