FranfinancePrestaShop extension
CVE-2023-43139
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 · uneditedAn issue in franfinance before v.2.0.27 allows a remote attacker to execute arbitrary code via the validation.php, and controllers/front/validation.php components.
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 confidenceA remote code execution vulnerability exists in franfinance (a PrestaShop module) versions prior to 2.0.27. The flaw is located in validation.php files within the module, allowing an unauthenticated remote attacker to execute arbitrary code on the affected server via the vulnerable validation endpoints.
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
FranfinancePrestaShop extension
< 2.0.27< 1.9.0CVSS 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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Locate the franfinance module directoryOn the PrestaShop server, navigate to the modules directory (typically /modules/franfinance/ or similar) and identify the module files, specifically looking for validation.php files mentioned in the CVE.Affected if The validation.php files exist within the franfinance module directory.
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Determine the installed franfinance module versionCheck the module's version file, configuration, or main PHP file (such as franfinance.php) where the version number is typically defined. Compare this version against the affected ranges: version < 2.0.27 or version < 1.9.0.Affected if The installed version is prior to 2.0.27 or is a version prior to 1.9.0.
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Verify the validation.php endpoints are accessibleCheck if the validation.php files within the franfinance module are web-accessible. These endpoints typically handle payment or form validation and may be reachable without authentication depending on PrestaShop routing configuration.Affected if The validation.php endpoints are web-accessible without requiring authentication.
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Confirm the module is activeIn the PrestaShop admin panel under Modules > Module Manager, verify whether the franfinance module is installed and enabled.Affected if The franfinance module is installed and enabled on the PrestaShop instance.
A user is affected if the franfinance module is installed and enabled with a version prior to 2.0.27 (or prior to 1.9.0) and the validation.php endpoints are accessible, allowing unauthenticated remote code execution.
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 · scoped1.9.02.0.27
Upgrade franfinance module to version 2.0.27 or later. If immediate patching is not possible, restrict network access to the affected validation.php endpoints and implement web application firewall rules to detect and block malicious requests.
franfinance module version 2.0.27 (for 2.x branch) or version 1.9.0 (for 1.x branch)
- 1. Log in to the PrestaShop admin dashboard
- 2. Navigate to the Modules > Module Manager section
- 3. Locate the 'franfinance' module in the installed modules list
- 4. Check the current installed version of the franfinance module
- 5. If running version 2.x branch: upgrade to version 2.0.27 or later
- 6. If running version 1.x branch: upgrade to version 1.9.0 or later
- 7. Verify the upgrade was successful by checking the module version
- 8. Test the payment/validation functionality to ensure the module still operates correctly
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Franfinance
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-43139 — 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-2023-43139 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