CVE-2015-3431
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 · uneditedPydio (formerly AjaXplorer) before 6.0.7 allows remote attackers to execute arbitrary commands via unspecified vectors, aka "Pydio OS Command Injection Vulnerabilities."
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 confidencePydio (formerly AjaXplorer) versions before 6.0.7 contain an OS command injection vulnerability that allows remote attackers to execute arbitrary operating system commands on the server. The vulnerability is classified as critical due to its remote exploitability and the complete impact of arbitrary command execution, including potential full system compromise.
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<= 6.0.6CVSS 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:3.0/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 Pydio versionAccess the Pydio administration panel and navigate to the 'About' or 'Settings' section to view the software version. Alternatively, check for a version.php file in the Pydio installation directory or inspect the main index page which often displays version information.Affected if The displayed version is 6.0.6 or any version lower than 6.0.7 (for example, 6.0.5, 6.0.0, 5.x.x)
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Confirm Pydio is accessible over networkVerify that the Pydio web interface is reachable from network locations. This vulnerability is remotely exploitable, so an internet-facing or network-accessible instance is at higher risk.Affected if Pydio is accessible from network locations beyond localhost or trusted internal networks
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Review web server access logs for command injection attemptsExamine web server access logs (typically found in /var/log/apache2/, /var/log/nginx/, or similar locations depending on your web server configuration) for unusual GET or POST requests containing shell metacharacters or suspicious commands.Affected if Logs contain requests with shell metacharacters like ; | & $ ` or commands such as wget, curl, or shell execution patterns directed at Pydio endpoints
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Check for unexpected files or scripts in web rootList all files in the Pydio web directory and look for unfamiliar PHP scripts, shell scripts, or executable files that were not part of a standard installation. Pay particular attention to files with names like cmd.php, shell.php, or similar.Affected if Unexpected PHP or script files exist in the Pydio installation directory that were not intentionally deployed
A user is affected if their installed Pydio version is 6.0.6 or lower and the application is network-accessible, as the command injection can be triggered remotely without authentication.
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 · scopedUpgrade Pydio to version 6.0.7 or later to remediate this vulnerability. If immediate upgrade is not possible, restrict network access to the Pydio application and implement web application firewall rules to detect and block command injection attempts.
Pydio 6.0.7 or later
- 1. Create a complete backup of the Pydio installation directory, database, and configuration files
- 2. Download Pydio version 6.0.7 (or latest 6.x version) from the official Pydio repository or website
- 3. Extract the new version archive to a temporary location
- 4. Replace the existing Pydio files with the new version files, ensuring to preserve the conf/ directory containing your existing configuration
- 5. Verify file permissions are correctly set after the upgrade
- 6. Test the application functionality to ensure the upgrade was successful
- 7. Monitor logs for any unusual activity
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-3431 — 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-2015-3431 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
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