SEPTEMBER 17, 2026
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Case File

CVE-2026-84282

MEDIUM · CVSS 6.5 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-08 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The ONLYOFFICE ownCloud Integration plugin version 9.12 contains a Server-Side Request Forgery (SSRF) vulnerability that allows authenticated administrators to exploit insufficient validation of the Document Server URL. This can lead to unauthorized outbound requests to attacker-controlled destinations, enabling internal network reconnaissance and TCP port scanning. Organizations using this plugin should prioritize remediation to prevent potential exposure of sensitive internal resources.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-84282
Severity
MEDIUM
CVSS
6.5
EPSS
0.20%
Office

Original NVD 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.