CVE-2024-39403 Stored XSS through Webhook module public key configuration

High 7.6 Published Updated

Low-privileged attackers can inject malicious scripts via Webhook public key fields, leading to data exfiltration in victim browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-39403?

CVE-2024-39403 is a high-severity cross-site scripting vulnerability in Adobe Commerce, published on 14 Aug 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Adobe Commerce versions 2.4.7-p1, 2.4.6-p6, 2.4.5-p8, 2.4.4-p9 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-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. Confidentiality impact is high due to the attacker being able to exfiltrate sensitive information.

Weakness: CWE-79

Which versions are affected by CVE-2024-39403?

12 open source packages ship an affected version, including magento/community-edition and magento/project-community-edition. It affects 2 products.

PackageAffectedFixed in
magento/community-edition PackagistAll versionsNone
magento/community-edition PackagistAll versionsNone
magento/community-edition PackagistFrom 2.4.4-p12.4.4-p10
magento/community-edition PackagistFrom 2.4.4-p12.4.4-p10
magento/community-edition PackagistFrom 2.4.5-p12.4.5-p9
magento/community-edition PackagistFrom 2.4.5-p12.4.5-p9
6 more packages
magento/community-edition PackagistFrom 2.4.6-p12.4.6-p7
magento/community-edition PackagistFrom 2.4.6-p12.4.6-p7
magento/community-edition PackagistFrom 2.4.7-beta12.4.7-p2
magento/community-edition PackagistFrom 2.4.7-beta12.4.7-p2
magento/project-community-edition PackagistAll versions to 2.0.2None
magento/project-community-edition PackagistAll versions to 2.0.2None

Products include Adobe Commerce, Adobe Magento.

How do I fix CVE-2024-39403?

Upgrade magento/community-edition to a fixed version for your release line: 2.4.4-p10, 2.4.5-p9, 2.4.6-p7 or 2.4.7-p2.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-39403 being exploited?

There is no known exploitation of CVE-2024-39403 in the wild and no public exploit code.

All Adobe Commerce vulnerabilities

Sources

Also known as GHSA-mmp7-8cg4-9wrg.

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