CVEvulnerability
CVE-2026-30587
8.7 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-03-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
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
Affected configurations
• seafile seafile server (< 12.0.20)
• seafile seafile server 13.0.15
• seafile seafile server 13.0.16
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f Exploit, Third Party Advisory
- https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2 Patch
- https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987 Patch
- https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/ Release Notes
- https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/ Release Notes
- https://manual.seafile.com/13.0/changelog/server-changelog/ Release Notes