CVE-2021-20102
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 · uneditedMachform prior to version 16 is vulnerable to cross-site request forgery due to a lack of CSRF tokens in place.
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 confidenceMachform versions prior to 16 lack CSRF token validation, allowing attackers to forge authenticated requests by tricking users into visiting malicious pages. This enables unauthorized actions to be performed on behalf of legitimate authenticated users, such as form submission manipulation or settings changes.
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< 16CVSS 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:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Identify Machform installationLocate the Machform installation directory on the web server or check for Machform-related files and directoriesAffected if Machform software is present on the system
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Determine installed Machform versionAccess the Machform admin panel and navigate to the about or settings section to view the software version, or check version files within the installation directoryAffected if The displayed version number is lower than 16 (for example, 15.x, 14.x, or earlier)
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Compare version to affected rangeReview the identified version against the affected range of versions prior to version 16Affected if The installed version is any release prior to Machform version 16
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Verify CSRF protection statusInspect form submissions and state-changing operations in Machform for the presence of CSRF token fields. This can be done by viewing page source code or intercepting HTTP requests to check for token parametersAffected if Form submissions and authenticated actions do not include CSRF token validation tokens
The environment is affected if Machform is installed and the version is below 16, indicating CSRF token validation is not implemented
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.
dbcve · scoped16
Upgrade to Machform version 16 or later, which includes proper CSRF token protection. If immediate upgrade is not possible, implement anti-CSRF tokens on all form submissions and state-changing operations.
Machform version 16
- Create a complete backup of the Machform database and all files
- Download Machform version 16 from the official vendor source
- Put the application into maintenance mode if available
- Upload and extract the Machform 16 files to the web server, replacing the existing installation
- Run any database upgrade scripts provided with version 16
- Verify file permissions are correctly set after upgrade
- Take the application out of maintenance mode
- Test that forms can be created, edited, and submitted normally
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-20102 — 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-2021-20102 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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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.
- 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