Stored cross-site scripting in Magento Open Source and Adobe Commerce (formerly Magento Commerce) - CVE-2021-21030
Published: February 10, 2021
Vulnerability identifier: #VU50558
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2021-21030
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can permanently inject 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
Magento Open Source
Adobe Commerce (formerly Magento Commerce)
Adobe Commerce (formerly Magento Commerce)
How to mitigate CVE-2021-21030
Install updates from vendor's website.
Magento Open Source - addressed in versions 2.3.6-p1, 2.4.1-p1, 2.4.2
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.3.6-p1, 2.4.1-p1, 2.4.2
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.3.6-p1, 2.4.1-p1, 2.4.2