CVE-2026-30587

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Summary

CVECVE-2026-30587
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 18:16:31 UTC
Updated2026-03-31 18:56:49 UTC
DescriptionMultiple 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

Risk And Classification

Primary CVSS: v3.1 8.7 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS: 0.000490000 probability, percentile 0.153750000 (date 2026-04-01)

Problem Types: CWE-79 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
3.1ADPDECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Seafile Seafile Server All All All All
Application Seafile Seafile Server 13.0.15 All All All
Application Seafile Seafile Server 13.0.16 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f [email protected] gist.github.com Exploit, Third Party Advisory
manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server [email protected] manual.seafile.com Release Notes
manual.seafile.com/13.0/changelog/server-changelog [email protected] manual.seafile.com Release Notes
github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc6... [email protected] github.com Patch
manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server [email protected] manual.seafile.com Release Notes
github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987 [email protected] github.com Patch
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