CVE-2023-49105
KEV Critical · CVSS 9.8- CVSS
- 9.8
- nvd
- EPSS
- 41.2%
- 99th pct
- KEV
- Listed
- 2026-08-27
- Class
- oss containerizable
- CWE-287, CWE-287
Description
An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.
References
- https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/
- https://owncloud.org/security
- https://owncloud.com/security-advisories/webdav-api-authentication-bypass-using-pre-signed-urls/
- https://owncloud.org/security
- https://hunt.io/blog/chinese-speaking-operator-philippine-nuclear-naval-contractor
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49105
Status: profiled · ingested 2026-08-28T18:00:49.000Z