CVE-2021-28556

Magento Commerce DOM-based cross-site scripting (XSS) could lead to arbitrary javascript execution

Description

Magento versions 2.4.2 (and earlier), 2.4.1-p1 (and earlier) and 2.3.6-p1 (and earlier) are affected by a DOM-based Cross-Site Scripting vulnerability on mage-messages cookies. Successful exploitation could lead to arbitrary JavaScript execution by an unauthenticated attacker. User interaction is required for successful exploitation.

Category

6.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 39.70% Top 5%
Vendor Advisory adobe.com
Affected: Adobe Magento Commerce
Published at:
Updated at:

References

Link Tags
https://helpx.adobe.com/security/products/magento/apsb21-30.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-28556?
CVE-2021-28556 has been scored as a medium severity vulnerability.
How to fix CVE-2021-28556?
To fix CVE-2021-28556, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-28556 being actively exploited in the wild?
It is possible that CVE-2021-28556 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~40% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-28556?
CVE-2021-28556 affects Adobe Magento Commerce.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.