GitHub Advisoryadvisory · npm

GHSA-rqj3-x344-qvxc Seafile Server has multiple stored XSS vulnerabilities

MEDIUM Published 2026-03-25 Modified 2026-04-02 Official page ↗
Aliases
CVE-2026-30587
Ecosystem
npm
Packages
@seafile/sdoc-editor
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2026-04-02

Affected packages

• npm @seafile/sdoc-editor: >= 3.0.0, < 3.0.75 → fixed in 3.0.75 • npm @seafile/sdoc-editor: < 2.0.209 → fixed in 2.0.209

Description

Multiple Stored XSS vulnerabilities exist in Seafile Server version 13.0.15,13.0.16-pro,12.0.14 and prior and fixed in 13.0.17, 13.0.17-pro, and 12.0.20-pro, via the Seadoc (sdoc) editor. The application fails to properly sanitize WebSocket messages regarding document structure updates. This allows authenticated remote attackers to inject malicious JavaScript payloads via the src attribute of embedded Excalidraw whiteboards or the href attribute of anchor tags.

Related

Alias · CVE (1)

  • CVE-2026-30587 Multiple Stored XSS vulnerabilities exist in Seafile Server version 13.0.15,13.0.16-pro,12.0.14 and prior and fixed in 13.0.17,… vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References