CVE-2023-49105
Unauthenticated auth-bypass in ownCloud allows full file access via pre-signed URLs.
Is CVE-2023-49105 being exploited?
Yes. CVE-2023-49105 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2023-49105?
CVE-2023-49105 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2023-49105?
Yes. A fix has been recorded for CVE-2023-49105. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2023-49105 affect?
CVE-2023-49105 affects ownCloud Server >=10.6.0 and <10.13.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2023-49105?
Upgrade to ownCloud 10.13.1+, apply vendor mitigations, and restrict external WebDAV access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can access, modify, or delete any file if victim username is known and owner lacks a signing-key.
Immediate action required