{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84282", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-09-01T14:36:00.661Z", "datePublished": "2026-09-08T14:27:08.525Z", "dateUpdated": "2026-09-08T15:08:20.566Z"}, "containers": {"cna": {"title": "A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin (version 9.12)", "descriptions": [{"lang": "en", "value": "A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin version 9.12. The /apps/onlyoffice/ajax/settings/address endpoint does not sufficiently validate the user-supplied Document Server URL before initiating outbound connections. An authenticated administrator can manipulate the document server parameter to cause the ownCloud server to send arbitrary requests to attacker-controlled destinations, including localhost and internal network hosts. This allows internal network reconnaissance and TCP port scanning based on differences in server responses."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Ascensio System SIA / OnlyOffice", "product": "ONLYOFFICE ownCloud integration plugin", "versions": [{"status": "affected", "version": "9.12"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-918 Server-Side Request Forgery (SSRF)"}]}, {"descriptions": [{"lang": "en", "description": "CWE-20 Improper Input Validation"}]}, {"descriptions": [{"lang": "en", "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"}]}], "references": [{"url": "https://github.com/ONLYOFFICE/onlyoffice-owncloud/blob/master/controller/settingsapicontroller.php"}, {"url": "https://kb.cert.org/vuls/id/943094"}], "x_generator": {"engine": "VINCE 3.0.45", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-84282"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-09-08T14:27:08.525Z"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/943094"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-08T15:08:20.566Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "ONLYOFFICE ownCloud integration plugin", "vendor": "Ascensio System SIA / OnlyOffice", "versions": [{"status": "affected", "version": "9.12"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin version 9.12. The /apps/onlyoffice/ajax/settings/address endpoint does not sufficiently validate the user-supplied Document Server URL before initiating outbound connections. An authenticated administrator can manipulate the document server parameter to cause the ownCloud server to send arbitrary requests to attacker-controlled destinations, including localhost and internal network hosts. This allows internal network reconnaissance and TCP port scanning based on differences in server responses."}], "id": "CVE-2026-84282", "lastModified": "2026-09-08T19:29:09.680", "metrics": {}, "published": "2026-09-08T15:18:51.473", "references": [{"source": "cret@cert.org", "url": "https://github.com/ONLYOFFICE/onlyoffice-owncloud/blob/master/controller/settingsapicontroller.php"}, {"source": "cret@cert.org", "url": "https://kb.cert.org/vuls/id/943094"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.kb.cert.org/vuls/id/943094"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred"}

{}