haiwen/seadoc-editor · Security
Seafile Server has multiple stored XSS vulnerabilities
- GHSA ID
- GHSA-rqj3-x344-qvxc
- CVE ID
- CVE-2026-30587
- Severity
- medium
- Published
- Updated
- CVSS
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CVSS v3
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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.
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-30587 ↗
- https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2 ↗
- https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987 ↗
- https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f ↗
- https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server ↗
- https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server ↗
- https://manual.seafile.com/13.0/changelog/server-changelog ↗
- https://github.com/advisories/GHSA-rqj3-x344-qvxc ↗