Cross-site scripting in QNAP Systems, Inc. products - CVE-2021-28807
Published: June 3, 2021
Vulnerability identifier: #VU53762
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2021-28807
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. A remote authenticated 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
QuTScloud
QuTS hero
Q’center
QNAP QTS
QuTS hero
Q’center
QNAP QTS
How to mitigate CVE-2021-28807
Install updates from vendor's website.
QuTScloud - update to c4.5.4
QuTS hero - update to h4.5.2
Q’center - addressed in versions 1.10.1004, 1.12.1012
QNAP QTS - addressed in versions 4.3.3, 4.3.6, 4.5.3
QuTS hero - update to h4.5.2
Q’center - addressed in versions 1.10.1004, 1.12.1012
QNAP QTS - addressed in versions 4.3.3, 4.3.6, 4.5.3