Vulnerability Database · NuGet · UmbracoCms · Version
UmbracoCms 8.4.0-rc
8.4.0-rc is affected by 5 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 8.18.15.
Critical 0 High 0 Medium 5 Low 0 Unrated 0
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Released 26 Nov 2019
Licence non-standard
Also known from other sources 0
Newer releases 300
Database updated 23/Oct/2026
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01 Vulnerabilities affecting this version
UmbracoCms 8.4.0-rc vulnerabilities
5 vulnerabilities cover UmbracoCms 8.4.0-rc. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2020-9472: Unrestricted Upload of File with Dangerous Type in Umbraco CMS | 6.5 medium | 8.5.4 | 02 Aug 2021 |
| CVE-2020-5811: Authenticated Path Traversal in Umbraco CMS | 6.5 medium | 8.9.2 | 13 Apr 2021 |
| CVE-2021-47776: Umbraco CMS Server-Side Request Forgery Vulnerability | 5.3 medium | No fix published | 15 Jan 2026 |
| CVE-2024-48927: UmbracoCms and Umbraco.Cms Potential Code Execution Risk in SVG File Preview | 4.6 medium | 8.18.15 | 22 Oct 2024 |
| CVE-2020-29454: Incorrect permission enforcement in UmbracoCms | 4.3 medium | 8.10.0 | 13 Apr 2021 |
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Questions
About UmbracoCms 8.4.0-rc
Is UmbracoCms 8.4.0-rc vulnerable?
Yes. 5 vulnerabilities in the Vulert database cover UmbracoCms 8.4.0-rc: 0 critical, 0 high, 5 medium and 0 low. The upgrade Vulert recommends is 8.18.15, and each entry above names the fixed version to move to.
Which version of UmbracoCms should I use instead of 8.4.0-rc?
8.18.15 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.
Is 8.4.0-rc the latest release of UmbracoCms?
No. 8.4.0-rc was published 26 Nov 2019, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor UmbracoCms for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the UmbracoCms version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.