Cloudreve: Unauthorized file write via WOPI view sessions whose access token secret is ignored
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.3epss 0.3%
probabilidade de exploração
0.3%top 77% das CVEs
exploração observada
nãonenhuma fonte reporta
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N
Produtos afetados
cloudreve · cloudreve