Adobe Commerce up to 2.4.9-alpha3 cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in Adobe Commerce up to 2.4.9-alpha3. The impacted element is an unknown function. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2026-21311. The attack can be launched remotely. No exploit exists. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability has been found in Adobe Commerce up to 2.4.9-alpha3 and classified as problematic. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is available at helpx.adobe.com. This vulnerability was named CVE-2026-21311 since 12/12/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

• E-Commerce Management Software

Vendor

• Adobe

Name

• Commerce

Version

• 2.4.4-p16
• 2.4.5-p15
• 2.4.6-p13
• 2.4.7-p8
• 2.4.8-p3
• 2.4.9-alpha3

License

• commercial

Website

• Vendor: https://www.adobe.com/

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