CVE-2012-4030
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 · uneditedChamilo before 1.8.8.6 does not adequately handle user supplied input by the index.php script, which could allow remote attackers to delete arbitrary files.
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 confidenceChamilo LMS before version 1.8.8.6 contains an arbitrary file deletion vulnerability in index.php where user-supplied input is not properly validated, allowing remote attackers to delete arbitrary files on the server via path traversal in the index.php script.
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< 1.8.8.6CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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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Confirm Chamilo LMS installationLook for the Chamilo installation directory - typically contains files like 'index.php', 'main/inc/conf/configuration.php', and a 'chamilo' or 'main' directory structure. Check the web root for characteristic Chamilo files.Affected if The software is Chamilo LMS and the installation directory structure matches Chamilo's standard layout.
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Identify the installed versionCheck the version by visiting the admin panel, looking for a 'version.php' file in the main installation directory, or checking 'main/inc/conf/configuration.php' for version information. Compare the version number against 1.8.8.6.Affected if The installed version is lower than 1.8.8.6 (e.g., 1.8.8.5, 1.8.8, 1.8.7, etc.).
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Locate the vulnerable index.phpFind the main index.php file in the Chamilo web root directory. This is the script where the path traversal vulnerability exists.Affected if The index.php file exists in the Chamilo installation directory and is accessible via the web server.
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Determine if file deletion functionality is exposedReview the index.php code or test whether the file deletion parameter (used for path traversal) is accepted as user input without validation. This vulnerability allows deletion via crafted path parameters.Affected if The index.php script accepts user-supplied path parameters for file operations without proper validation, allowing path traversal sequences like '../'.
You are affected if you have Chamilo LMS installed with a version lower than 1.8.8.6 and the index.php file is accessible, as the path traversal vulnerability can allow arbitrary file deletion.
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 data1.8.8.6
Upgrade to Chamilo 1.8.8.6 or later which includes proper input validation, or apply the security patch that sanitizes user input to prevent path traversal attacks in the index.php file.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-4030 — 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-2012-4030 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
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