CVE-2023-49278: Exposure of Sensitive Information to an Unauthorized Actor

December 12, 2023 (updated December 15, 2023)

Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, a brute force exploit can be used to collect valid usernames. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.

References

github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-7x74-h8cw-qhxq
nvd.nist.gov/vuln/detail/CVE-2023-49278

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