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Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks

🗓️ 11 Mar 2026 14:54:05Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 13 Views

Umbraco backoffice privilege escalation due to missing authorization checks on user group changes.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-31834
10 Mar 202621:53
attackerkb
circl
Circl
CVE-2026-31834
12 Mar 202611:10
circl
cnnvd
CNNVD
Umbraco 安全漏洞
10 Mar 202600:00
cnnvd
cve
CVE
CVE-2026-31834
10 Mar 202621:53
cve
cvelist
Cvelist
CVE-2026-31834 Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks
10 Mar 202621:53
cvelist
euvd
EUVD
EUVD-2026-10937
11 Mar 202614:54
euvd
nvd
NVD
CVE-2026-31834
10 Mar 202622:16
nvd
osv
OSV
GHSA-RHCG-3H8R-V6VP Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks
11 Mar 202614:54
osv
ptsecurity
Positive Technologies
PT-2026-24487
10 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-31834
26 Mar 202614:59
redhatcve
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Vulners
Node
OR
umbraco.cmsRange17.0.017.2.2nuget
umbraco.cmsRange15.3.116.5.1nuget

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11 Mar 2026 14:54Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.2
EPSS0.00257
SSVC
13