CVE-2019-12250

PoC —

CVSS 3.0

6.1 medium

EPSS

<1%p56

Published

May 21, 2019 (May 21, 2019)

Modified

Jun 17, 2026

Description

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

Vendors: identityserver
Products: identityserver4
Weakness: CWE-79
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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