Vulnerability Details : CVE-2019-12250
IdentityServer IdentityServer4 through 2.4 has stored XSS via the httpContext to the host/Extensions/RequestLoggerMiddleware.cs LogForErrorContext method, which can be triggered by viewing a log. NOTE: the software maintainer disputes that this is a vulnerability because the request logger is not part of IdentityServer but only our development test host
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2019-12250
- cpe:2.3:a:identityserver:identityserver4:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-12250
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-12250
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2019-12250
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-12250
-
https://github.com/IdentityServer/IdentityServer4/issues/3279
XSS in the RequestLoggerMiddleware.cs · Issue #3279 · IdentityServer/IdentityServer4 · GitHubExploit;Third Party Advisory
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