CVE-2023-49278

Umbraco CMS brute force exploit can be used to collect valid usernames

Published Dec 12, 2023 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-3155 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.
Github GHSA Github GHSA GHSA-7x74-h8cw-qhxq Brute force exploit can be used to collect valid usernames
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 8, 2024, 2:33 PM
Reserved
Nov 24, 2023, 4:45 PM
Status
Modified
Published
Dec 12, 2023, 8:15 PM
Modified
Jun 17, 2026, 6:35 AM