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CVE-2026-21311

HIGH CVSS 3.1: 8.0 EPSS 0.10%
Updated Mar 11, 2026
Adobe
Parameter Value
CVSS 8.0 (HIGH)
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Adobe
Public PoC No

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a high-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim’s browser when they browse to the page containing the vulnerable field. A successful attacker can abuse this to achieve session takeover, increasing the confidentiality, and integrity impact to high.

Exploitation of this issue requires user interaction in that a victim must browse to the page containing the vulnerable field.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1