Stored Cross-Site Scripting Vulnerability in Adobe Commerce
CVE-2026-21284

8.1HIGH

Key Information:

Vendor

Adobe
Status
Adobe Commerce
Vendor
CVE Published:
11 March 2026

What is CVE-2026-21284?

Adobe Commerce versions 2.4.9-alpha3 and earlier are susceptible to a stored Cross-Site Scripting (XSS) vulnerability. This flaw allows attackers with elevated privileges to inject harmful scripts into various form fields. When a victim visits the affected page, the malicious JavaScript can execute in their browser, enabling the attacker to potentially hijack user sessions. This vulnerability underscores the importance of securing user input fields to uphold confidentiality and integrity within affected versions.

Affected Version(s)

Adobe Commerce 0 <= 2.4.4-p16

References

https://helpx.adobe.com/security/products/magento/apsb26-...
vendor-advisory

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.