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Contao CmsApplication · Contao

CVE-2019-10642

HIGH · 8.8 CVSS v3.0 Published 2019-04-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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 · unedited
Contao 4.7 allows CSRF.

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 · moderate confidence

Contao 4.7 contains a Cross-Site Request Forgery (CSRF) vulnerability that allows attackers to trick authenticated users into performing unintended actions on the CMS.

MitigationImplement anti-CSRF tokens (synchronizer token pattern) on state-changing operations and ensure proper token validation on the server side.

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
Contao CmsApplication
Affected:= 4.7.0

CVSS 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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Contao version
    Check the version file or dashboard in the Contao installation. Common locations include the composer.json file in the webroot, or the 'About' section in the Contao Manager. Run: composer show contao/core-bundle 2>/dev/null | grep version or inspect the installed version via the Contao install tool.
    Affected if The installed version is exactly 4.7.0
  2. Confirm core-bundle version
    Run 'composer show contao/core-bundle' to display the installed version details of the Contao core bundle component.
    Affected if The core-bundle version displayed is 4.7.0
  3. Verify CSRF token implementation
    Inspect the source code for state-changing operations (forms, API endpoints, admin actions) to determine if anti-CSRF tokens (synchronizer tokens) are implemented. Look for token generation in controllers and validation before executing state-changing requests.
    Affected if State-changing operations lack CSRF token generation and validation, allowing forged requests to execute successfully

You are affected if your Contao installation is exactly version 4.7.0 and state-changing operations lack CSRF token protection.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement anti-CSRF tokens (synchronizer token pattern) on state-changing operations and ensure proper token validation on the server side.

Fix this in Contao Cms Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-10642 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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