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9.3

Adobe Commerce lets attackers run scripts in browsers

CVE-2026-100133 · published 2 days ago
Summary

Adobe Commerce, including its B2B and Magento Open Source editions, can let a malicious user place harmful code into certain form fields. When another user opens the page, the code runs in their browser, possibly stealing session data or taking control of their account. Install the latest security updates and ensure all input is properly filtered to prevent script injection.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
adobe adobe commerce <= 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep, 2.4.6-2026-sep, 2.4.5-2026-sep, 2.4.4-2026-sep
adobe adobe commerce b2b <= 1.5.3-2026-sep, 1.5.2-2026-sep, 1.4.2-2026-sep, 1.3.4-2026-sep, 1.3.3-2026-sep
adobe magento open source <= 2.4.9-2026-sep, 2.4.8-2026-sep, 2.4.7-2026-sep
Original advisory text
Adobe Commerce | Cross-site Scripting (Stored XSS) (CWE-79)
Adobe Commerce is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an 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, potentially gaining elevated access or control over the victim's account or session. Scope is changed.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.3 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published13 Oct 2026
Updated15 Oct 2026
First seen13 Oct 2026
Sources
CVE-2026-100133 · NVD
CVE-2026-100133 · MITRE
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