High severity8.7NVD Advisory· Published Mar 25, 2026· Updated May 10, 2026
CVE-2026-30587
CVE-2026-30587
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
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@seafile/sdoc-editornpm | >= 3.0.0, < 3.0.75 | 3.0.75 |
@seafile/sdoc-editornpm | < 2.0.209 | 2.0.209 |
Affected products
4cpe:2.3:a:seafile:seafile_server:13.0.15:*:*:*:community:*:*:*+ 2 more
- cpe:2.3:a:seafile:seafile_server:13.0.15:*:*:*:community:*:*:*
- cpe:2.3:a:seafile:seafile_server:13.0.16:*:*:*:professional:*:*:*
- cpe:2.3:a:seafile:seafile_server:*:*:*:*:professional:*:*:*range: <12.0.20
Patches
Vulnerability mechanics
References
11- github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2nvdPatchWEB
- github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987nvdPatchWEB
- gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2fnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-rqj3-x344-qvxcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-30587ghsaADVISORY
- manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-serverghsaWEB
- manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/nvdRelease Notes
- manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-serverghsaWEB
- manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/nvdRelease Notes
- manual.seafile.com/13.0/changelog/server-changelogghsaWEB
- manual.seafile.com/13.0/changelog/server-changelog/nvdRelease Notes
News mentions
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