EUVD-2026-74036
GHSA-3vvf-3c6r-r3hc
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Network-reachable unauthenticated stored injection (PR:N) needing a victim to view the page (UI:R); script runs in a different context (S:C) enabling session/account compromise (C:H/I:H, A:N).
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Stored cross-site scripting in Adobe Commerce, Magento Open Source, and Adobe Commerce B2B lets a remote attacker persist malicious JavaScript in vulnerable form fields that later executes in a victim's browser when they view the affected page. Successful exploitation can hijack the victim's session or account, and because scope is changed (S:C) the payload can affect resources beyond the vulnerable component - for example an admin session viewing attacker-supplied content. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to reach a specific vulnerable form field in Adobe Commerce / Magento Open Source / Commerce B2B and store a JavaScript payload there (per CVSS PR:N, no authentication is required to inject), and it requires a victim to subsequently browse to the page that renders the stored field (UI:R). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N, 9.3) describes network-reachable, low-complexity, unauthenticated injection requiring victim interaction (browsing to the poisoned page), with high confidentiality and integrity impact and a scope change - a realistic profile for stored XSS leading to admin/account takeover. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the security update referenced in Adobe advisory APSB26-138 (https://helpx.adobe.com/security/products/magento/apsb26-138.html); the input lists the affected trains as Adobe Commerce/Magento Open Source 2.4.4-2.4.9 and Commerce B2B 1.3.x-1.5.x, so upgrade to the fixed 2026-aug patch release published in that bulletin for your installed line (an exact fixed build number is not enumerated in the provided data - take the version Adobe designates as patched in APSB26-138). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Adobe Commerce and Magento Open Source instances in production, document installed versions and identify all custom form implementations, and review application logs for suspicious JavaScript patterns in form submission parameters. …
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External POC / Exploit Code
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