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CVE-2025-27602 — Vulnerability in Umbraco.Cms.Web.Backoffice — CVE...

MEDIUM

Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content

Published March 11, 2025Updated March 12, 2025Source: osv

Summary

### Impact Via manipulation of backoffice API URLs it's possible for authenticated backoffice users to retrieve or delete content or media held within folders the editor does not have access to. ### Patches Will be patched in 10.8.9 and 13.7.1 ### Workarounds None available.

Advisory Timeline

  • First published March 11, 2025 (580 days ago).
  • Last revised March 12, 2025 — 1 day after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update Umbraco.Cms.Web.Backoffice to 10.8.9 or later
dotnet add package Umbraco.Cms.Web.Backoffice --version 10.8.9
NuGet
Update Umbraco.Cms.Web.Backoffice to 13.7.1 or later
dotnet add package Umbraco.Cms.Web.Backoffice --version 13.7.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
Umbraco.Cms.Web.Backoffice
nuget
10.0.0, 10.0.0-rc1, 10.0.0-rc2, 10.0.0-rc3 (+64 more)10.8.9
Umbraco.Cms.Web.Backoffice
nuget
11.0.0, 11.0.0-rc1, 11.0.0-rc2, 11.0.0-rc3 (+77 more)13.7.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-285
    Improper AuthorizationMITRE
  • CWE-863
    Incorrect AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 4.9 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Frequently Asked Questions

What is CVE-2025-27602?
Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 4.9/10).
How do I check if my project is affected by CVE-2025-27602?
CVE-2025-27602 affects Umbraco.Cms.Web.Backoffice. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-27602 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
4.9

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-wx5h-wqfq-v698

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