Cross-site scripting in Palo Alto PAN-OS - CVE-2021-3052
Published: September 8, 2021
Vulnerability identifier: #VU56409
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-2021-3052
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 the Palo Alto Network PAN-OS web interface. 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
Palo Alto PAN-OS
How to mitigate CVE-2021-3052
Install update from vendor's website.
Palo Alto PAN-OS - addressed in versions 8.1.20, 9.0.14, 9.1.10, 10.0.2