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CVE-2023-491059.8/CRITICALEPSS 94.0%CISA KEV
2023-11-21

ownCloud Core WebDAV API Authentication Bypass via Pre-Signed URLs (CVE-2023-49105)

[Affected Scope] ownCloud Core versions from 10.6.0 up to (but excluding) 10.13.1 are affected.

[Impact] Unauthenticated attackers can access, modify, or delete any file if they know the victim's username and the victim has no signing-key configured.

[Mitigation] Immediately upgrade ownCloud Core to version 10.13.1 or higher, and enforce signing-key configurations as a temporary workaround.