CVE-2020-37186
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 · uneditedChevereto 3.13.4 Core contains a remote code execution vulnerability that allows attackers to inject malicious code during database configuration installation. Attackers can manipulate the database table prefix parameter to write a PHP shell file and execute arbitrary system commands through a crafted POST request.
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 confidenceChevereto 3.13.4 Core has a critical RCE vulnerability in its installation process. Attackers can manipulate the database table prefix parameter in a crafted POST request during initial database configuration to inject and write a malicious PHP shell file, then execute arbitrary system commands.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 Chevereto versionLocate the version file or code that contains the version number, typically in the root directory or a config file. Common locations include a version.php file or the main application file.Affected if The installed version is 3.13.4 or falls within the 3.x branch prior to patching.
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Verify installation files existCheck if the /install/ directory and its contents (particularly index.php) are still present on the web server.Affected if The installation directory and its executable files are still accessible on the server.
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Confirm installation statusDetermine whether the initial setup wizard has been completed by checking for the existence of the database configuration file or settings file that gets created after successful installation.Affected if The application reports as not yet installed or the configuration file is missing, indicating the install wizard can still be accessed.
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Check web server access to install pathAttempt to access the installation endpoint via HTTP request or verify through server logs whether the install path responds to requests.Affected if The install path returns a valid response or is reachable over the network.
A system is affected if Chevereto version 3.13.4 is running AND the installation files remain accessible, allowing an attacker to reach the database configuration phase.
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 dataImmediately remove installation files after completing setup, restrict web server write permissions, and upgrade to the patched version of Chevereto when available. Network-level restrictions on the install path provides interim protection.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-37186 — 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-2020-37186 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