CVE-2026-30974

MEDIUM4.6EPSS 0.04%

copyparty: volflag `nohtml` did not block javascript in svg files

發布日:2026/3/10修改日:2026/3/10

描述

### Summary The `nohtml` config option, intended to prevent execution of JavaScript in user-uploaded HTML files, did not apply to SVG images. ### Details A user with write-permission could upload an SVG containing embedded JavaScript, which would execute in the context of whichever user opens it. This in itself is not a vulnerability; it is intended behavior according to [the SVG spec](https://www.w3.org/TR/SVG11/script.html). The vulnerability is that the `nohtml` volflag, when enabled, did not prevent this. `nohtml`, intended for use on volumes which contains untrusted files, would correctly prevent execution of javascript in HTML files, but did not consider SVG images. This has been fixed in v1.20.11. ### Impact The malicious JavaScript could move or delete existing files on the server, or upload new files, using the account of the person who opens the SVG.

受影響套件(1)

PyPI/copypartyfrom 0, < 1.20.11

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM4.6	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

描述

受影響套件(1)

CVSS 分數

參考連結(5)