CVE-2026-34658: Adobe Commerce stored XSS in form fields

CVE-2026-34658 · Severity: medium · CVSS 4.8 · Published 2026-05-12

Adobe Commerce, a popular e-commerce platform used for managing online stores, is affected by a security flaw that allows high-privileged users to inject malicious scripts into the administrative interface. If an administrator views a page containing this malicious script, it could execute in their browser, potentially leading to unauthorized actions or data access within the store management console. This risk is primarily internal, as it requires an attacker to already have significant administrative access.

Technologies: Adobe Commerce, Adobe Magento Open Source. Vendors: Adobe.

Quick answers

Is CVE-2026-34658 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-34658 being exploited in the wild.
How severe is CVE-2026-34658?
Medium severity, with a CVSS score of 4.8, published 12 May 2026.
Which products and versions are affected?
Adobe Commerce 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier; Adobe Magento Open Source 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier.
Is there a fix for CVE-2026-34658?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-34658 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-34658?
Check whether you run Adobe Commerce or Adobe Magento Open Source at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored Cross-Site Scripting (XSS) vulnerability exists in Adobe Commerce due to improper neutralization of input during web page generation (CWE-79). A high-privileged attacker can inject malicious JavaScript into specific form fields within the application. This script is then stored on the server and executed in the context of another user's browser session (typically another administrator) when they navigate to the affected page. The attack requires network access and high-level privileges (PR:H) as well as some user interaction (UI:R). Successful exploitation results in a changed scope (S:C), allowing for limited impact on confidentiality and integrity.

Affected products

  • Adobe Adobe Commerce 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier
  • Adobe Magento Open Source 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier

Timeline

  • 2026-05-12: disclosed
  • 2026-05-12: advisory

References

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