CVE-2019-7942
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA remote code execution vulnerability exists in Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. An authenticated user with admin privileges to create or edit a product can execute arbitrary code via malicious XML layout updates.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceAuthenticated admin users with product creation/edit privileges can inject malicious XML layout updates that enable arbitrary code execution on the Magento server.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 2.1.0, < 2.1.18>= 2.2.0, < 2.2.9>= 2.3.0, < 2.3.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed Magento versionRun the command 'php bin/magento --version' from the Magento root directory, or check the file 'composer.json' for the 'version' field under 'require' for 'magento/product-community-edition' or 'magento/product-enterprise-edition'Affected if The version falls within < 2.1.18, or >= 2.2.0 and < 2.2.9, or >= 2.3.0 and < 2.3.2
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Confirm admin access existsVerify that the admin panel is accessible by checking for /admin or custom admin path in configuration, and confirm admin user accounts exist in the database table 'admin_user'Affected if Any admin user account is active and accessible, particularly those with product creation or edit privileges (check 'acl_role' table for role_id with catalog/product permissions)
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Check for XML layout update capabilityExamine if the 'XML Node Type' or 'Layout Update XML' field is available in the admin panel under Catalog > Products > Add/Edit Product > Design section, or check if layout XML updates can be saved in the database table 'catalog_product_entity_text' where attribute_id corresponds to 'layout_update_xml'Affected if Admin users can save custom XML layout updates through product editing without sanitization being applied
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Inspect for suspicious XML layout filesSearch the codebase for XML files containing 'block' or 'referenceBlock' tags with 'class' attributes pointing to PHP classes (e.g., 'Magento\Framework\Data\Form\Element\_'), or review recently modified files in app/design/frontend/ and app/design/adminhtml/ directoriesAffected if Any custom XML layout updates exist that reference PHP classes or contain potentially malicious block references
The environment is affected if Magento version is 2.1.0 to < 2.1.18, 2.2.0 to < 2.2.9, or 2.3.0 to < 2.3.2 AND admin users with product edit privileges have the ability to add custom XML layout updates.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data2.1.182.2.92.3.2
Apply the relevant security patch or upgrade to Magento 2.1.18, 2.2.9, 2.3.2 or later. Restrict admin access to trusted personnel and audit product-related admin activity.
- Consultation3.0 h
- Implementation6.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-7942 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-7942 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data