Umbraco.Cms.Web.BackOffice Known Vulnerabilities & Fixes
Umbraco.Cms.Web.BackOffice has 3 known security vulnerabilities in NuGet (.NET). Upgrade to version 13.7.1 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 13.7.1
Upgrading to 13.7.1 or later resolves all 3 known vulnerabilities in Umbraco.Cms.Web.BackOffice. Run: dotnet add package Umbraco.Cms.Web.BackOffice --version 13.7.1
Is Umbraco.Cms.Web.BackOffice in your project?
Check if you're affected and upgrade to 13.7.1 to stay secure.
Security Summary
- 9 affected version ranges have been identified across these 3 advisories.
- 100% of known issues have a published fixed version.
- Remediation: dotnet add package Umbraco.Cms.Web.BackOffice
Vulnerabilities
3 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jul 13, 2023, most recently Mar 11, 2025 (607 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2023-37267 Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions | HIGH | 10.0.0, 10.0.0-rc1, 10.0.0-rc2, 10.0.0-rc3 (+61 more) | 10.6.1, 11.4.2, 12.0.1 |
| CVE-2024-34071 Umbraco CMS Open Redirect Bypass Protection | MEDIUM | 10.5.0, 10.5.1, 10.6.0, 10.6.0-rc (+42 more) | 8.18.14, 10.8.6, 12.3.10 (+1 more) |
| CVE-2025-27602 Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content | MEDIUM | 10.0.0, 10.0.0-rc1, 10.0.0-rc2, 10.0.0-rc3 (+145 more) | 10.8.9, 13.7.1 |
About This Data
Vulnerability data for Umbraco.Cms.Web.BackOffice is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related NuGet (.NET) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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