A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin version 9.12. (CVE-2026-84282)
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.
A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin version 9.12. (CVE-2026-84282)
Description
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.
CVSS v3.1
Score 6.5medium
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wpfp-j2f8-c6vj
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84282"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6aa3297591cc7f3848d1a391
Added to database: 09/10/2026, 22:04:37 UTC
Last updated: 09/10/2026, 22:04:37 UTC
Views: 1
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