Type Vulnerability
Cross-site request forgery (csrf) in Core allows an unauthorised attacker to elevate privileges over a network.
Microsoft · Privilege escalation
ASP.NET Core Elevation of Privilege Vulnerability
CVE-2026-109481
What this means
This is rated high severity (7.5 out of 10). There is no confirmed exploitation of it yet. Ask IT whether the affected products are in your estate.
Full vendor description
Cross-site request forgery (csrf) in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Scoring and exploitation
7.5/ 10
CVSS 3.1 base scoreHigh
Exploitable over the network without any account, under specific conditions, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityHighAC:H
Privileges requiredNonePR:N
User interactionRequiredUI:R
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
- Not reported
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-352
References
1 link from the CVE record, grouped by site.
msrc.microsoft.com1 link