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CVE-2026-30587

Published: Mar 25, 2026

Modified: May 10, 2026

PUBLISHED

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

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f

https://manual.seafile.com/13.0/changelog/server-changelog/

https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/

https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/

https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987

https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2

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