GHSA-RQJ3-X344-QVXC

Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-04-02 00:00
VLAI?
Summary
Seafile Server has multiple stored XSS vulnerabilities
Details

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.

Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@seafile/sdoc-editor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.75"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@seafile/sdoc-editor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.209"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-30587"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-02T00:00:24Z",
    "nvd_published_at": "2026-03-25T18:16:31Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-rqj3-x344-qvxc",
  "modified": "2026-04-02T00:00:24Z",
  "published": "2026-03-25T18:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30587"
    },
    {
      "type": "WEB",
      "url": "https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/haiwen/seadoc-editor"
    },
    {
      "type": "WEB",
      "url": "https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server"
    },
    {
      "type": "WEB",
      "url": "https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server"
    },
    {
      "type": "WEB",
      "url": "https://manual.seafile.com/13.0/changelog/server-changelog"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Seafile Server has multiple stored XSS vulnerabilities"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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