8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.028 Low
EPSS
Percentile
90.6%
An elevation of privilege vulnerability exists when a Kestrel web application fails to validate web requests.
An attacker who successfully exploited this vulnerability could perform HTML injection attacks.
To exploit the vulnerability, an attacker could send a specially crafted request, containing injected HTML, to the web application. The specially crafted request would initiate a "password reset" email to the target user. Depending on the target user email client, the injected HTML could trigger as soon as the target user opens the "password reset" e-mail.
The security update addresses the vulnerability by correcting how a Kestrel web application validates web requests.
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.028 Low
EPSS
Percentile
90.6%