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Not in CISA KEV
HIGH severity

CVE-2017-9840 — dolibarr

HIGH

CVE-2017-9840 is a high-severity (CVSS 8.8) Unrestricted File Upload vulnerability in dolibarr/dolibarr. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Dolibarr ERP and CRM Unsafe File Upload Vulnerability

Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.20%0.78%1.37%1.96%0.7%1.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘dolibarr/dolibarr

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Dolibarr ERP/CRM 5.0.3 and prior allows low-privilege users to upload files of dangerous types, which can result in arbitrary code execution within the context of the vulnerable application.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistdolibarr/dolibarrall versionsNo fix

Affected Products

1 product · 1 configurations
Application
dolibarrdolibarr
≤ 5.0.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for dolibarr/dolibarr, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of dolibarr/dolibarr for CVE-2017-9840. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Treat uploaded files as untrusted until proven otherwise: validate the actual content type rather than the supplied extension, store uploads outside the web root on a volume mounted without execute permission, and rename them to server-generated identifiers so an attacker cannot choose the path a request will later resolve.

Frequently Asked Questions

Dolibarr ERP/CRM 5.0.3 and prior allows low-privilege users to upload files of dangerous types, which can result in arbitrary code execution within the context of the vulnerable application.
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CVE-2017-9840: dolibarr RCE (High 8.8)