CVEvulnerability

CVE-2026-62323

6.3 MEDIUM Published 2026-07-31 Modified 2026-09-08 Official page ↗
Status
Deferred
Published
2026-07-31
Last modified
2026-09-08
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N
Weaknesses
CWE-863

Description

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, ViewerSessionValidation uses only the session-id prefix of a WOPI access token and does not enforce the requested viewer action, allowing a malicious or compromised WOPI viewer with a view session to forge the token suffix and invoke WOPI write routes for the underlying file. This issue is fixed in version 4.17.0.

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References