Cross-site scripting in sanitize-url - CVE-2021-23648

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Main Vulnerability Database Vulnerabilities #VU66868

Cross-site scripting in sanitize-url - CVE-2021-23648

Published: August 30, 2022


Vulnerability identifier: #VU66868
CSH Severity: Medium
CVSS v4: 5.1 [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]
CVE-ID: CVE-2021-23648
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in sanitizeUrl() function. 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.


Affected software

sanitize-url
Oracle Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Fedora
OpenShift Service Mesh
Red Hat OpenShift Container Platform
grafana
grafana (Red Hat package)

How to mitigate CVE-2021-23648

Install updates from vendor's website.

sanitize-url - update to 6.0.0
OpenShift Service Mesh - update to 2.3.1
Red Hat OpenShift Container Platform - update to 4.11.0
grafana - addressed in versions 7.5.15-2.fc34, 7.5.15-2.fc35, 7.5.15-2.fc36
grafana (Red Hat package) - addressed in versions 7.5.15-3.el8, 7.5.15-3.el9

External References

Related Security Bulletins