Cross-site scripting in OpenID-Connect-Java-Spring-Server - CVE-2020-5497
Published: February 3, 2020 / Updated: December 27, 2021
Vulnerability identifier: #VU24832
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2020-5497
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: The MITRE Corporation and MIT KIT
Affected software:
OpenID-Connect-Java-Spring-Server
OpenID-Connect-Java-Spring-Server
Detailed vulnerability description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists within the OpenID Connect reference implementation due to insufficient sanitization of user-supplied data in "userInfoJson" in "header.tag". A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
How to mitigate CVE-2020-5497
Install update from vendor's website.