CVE-2021-21029: Magento Commerce Reflected Cross-site Scripting Vulnerability Could Lead To Arbitrary JavaScript Execution
First published: Thu Feb 11 2021(Updated: )
Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by a Reflected Cross-site Scripting vulnerability via 'file' parameter. Successful exploitation could lead to arbitrary JavaScript execution in the victim's browser. Access to the admin console is required for successful exploitation.
Credit: psirt@adobe.com psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Magento Magento | <2.3.6 | |
| Magento Magento | <2.3.6 | |
| Magento Magento | =2.3.6 | |
| Magento Magento | =2.3.6 | |
| Magento Magento | =2.4.0 | |
| Magento Magento | =2.4.0 | |
| Magento Magento | =2.4.0-p1 | |
| Magento Magento | =2.4.0-p1 | |
| Magento Magento | =2.4.1 | |
| Magento Magento | =2.4.1 | |
| composer/magento/community-edition | >=2.4.0<2.4.2 | 2.4.2 |
| composer/magento/community-edition | <2.3.6-p1 | 2.3.6-p1 |
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Reference Links
- https://helpx.adobe.com/security/products/magento/apsb21-08.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-21029
- https://github.com/magento/magento2/commit/a2eb7e29ea92a8bbc86c3b6b81b59d8533088497
- https://github.com/magento/magento2/commit/a349e022c9ae070e7da262021f9ef182105aa00b
- https://github.com/advisories/GHSA-jwxh-wj79-ccm6 (Advisory)
Frequently Asked Questions
What is the vulnerability ID of this Magento vulnerability?
The vulnerability ID of this Magento vulnerability is CVE-2021-21029.
What versions of Magento are affected by this vulnerability?
Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier), and 2.3.6 (and earlier) are affected by this vulnerability.
What is the severity of CVE-2021-21029?
The severity of CVE-2021-21029 is medium with a CVSS score of 4.8.
What is the impact of this vulnerability?
Successful exploitation of this vulnerability could lead to arbitrary JavaScript execution in the victim's browser.
How can I fix CVE-2021-21029 in my Magento installation?
To fix CVE-2021-21029, it is recommended to update Magento to version 2.4.2 or apply the necessary patches provided by Magento.
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