{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-30587", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-03-27T19:39:27.697Z", "dateReserved": "2026-03-04T00:00:00.000Z", "datePublished": "2026-03-25T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-03-25T17:05:27.741Z"}, "descriptions": [{"lang": "en", "value": "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": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f"}, {"url": "https://manual.seafile.com/13.0/changelog/server-changelog/"}, {"url": "https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/"}, {"url": "https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/"}, {"url": "https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987"}, {"url": "https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-27T19:39:14.665567Z", "id": "CVE-2026-30587", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-27T19:39:27.697Z"}}]}, "dataVersion": "5.2"}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:seafile:seafile_server:*:*:*:*:professional:*:*:*", "matchCriteriaId": "79197CA1-6A7E-4165-AD57-982C8824B82C", "versionEndExcluding": "12.0.20", "vulnerable": true}, {"criteria": "cpe:2.3:a:seafile:seafile_server:13.0.15:*:*:*:community:*:*:*", "matchCriteriaId": "ECCCED4B-9663-4BC1-BD35-995B3DCDAC95", "vulnerable": true}, {"criteria": "cpe:2.3:a:seafile:seafile_server:13.0.16:*:*:*:professional:*:*:*", "matchCriteriaId": "880080C5-9A1A-4D9B-83AB-33D8C21FCF38", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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"}, {"lang": "es", "value": "M\u00faltiples vulnerabilidades de XSS Almacenado existen en Seafile Servidor versi\u00f3n 13.0.15, 13.0.16-pro, 12.0.14 y anteriores, y fueron corregidas en 13.0.17, 13.0.17-pro y 12.0.20-pro, a trav\u00e9s del editor Seadoc (sdoc). La aplicaci\u00f3n no logra sanear correctamente los mensajes de WebSocket relacionados con las actualizaciones de la estructura del documento. Esto permite a atacantes remotos autenticados inyectar cargas \u00fatiles maliciosas de JavaScript a trav\u00e9s del atributo src de las pizarras blancas incrustadas de Excalidraw o el atributo href de las etiquetas de anclaje."}], "id": "CVE-2026-30587", "lastModified": "2026-03-31T18:56:49.457", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-03-25T18:16:31.793", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/"}, {"source": "cve@mitre.org", "tags": ["Release Notes"], "url": "https://manual.seafile.com/13.0/changelog/server-changelog/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "Seafile Server: Seadoc editor: seahub: seadoc-editor: Seafile Server: Arbitrary client-side code execution via Stored Cross-Site Scripting in Seadoc editor", "id": "2451404", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451404"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["A flaw was found in Seafile Server and its Seadoc editor. This Stored Cross-Site Scripting (XSS) vulnerability allows authenticated remote attackers to inject malicious JavaScript code. The application fails to properly sanitize WebSocket messages during document structure updates. By exploiting this, an attacker can execute arbitrary client-side scripts, potentially leading to information disclosure or unauthorized actions within a user's browser."], "name": "CVE-2026-30587", "public_date": "2026-03-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-30587\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-30587\nhttps://gist.github.com/gabdevele/1b7e30ab367b26042fa32f45aa12ce2f\nhttps://github.com/haiwen/seadoc-editor/commit/8fa988aaede072b2ae073d1b2edcb2fc691423b2\nhttps://github.com/haiwen/seahub/commit/4c5301747bdb84c64b2f2b3230417df2d1cc8987\nhttps://manual.seafile.com/12.0/changelog/changelog-for-seafile-professional-server/\nhttps://manual.seafile.com/13.0/changelog/changelog-for-seafile-professional-server/\nhttps://manual.seafile.com/13.0/changelog/server-changelog/"], "statement": "This MODERATE stored XSS vulnerability in Seafile Server's Seadoc editor allows authenticated users to inject malicious scripts via unsanitized WebSocket messages. Exploitation requires low privileges (any authenticated user) and user interaction (victim views document). Impact is high to confidentiality and integrity. Affects Seafile Server 13.0.15, 13.0.16-pro, 12.0.14 and prior. Fixed in 13.0.17, 13.0.17-pro, and 12.0.20-pro.", "threat_severity": "Moderate"}