CVE-2012-4343
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 · uneditedMultiple unspecified vulnerabilities in Gallery 3 before 3.0.4 allow attackers to execute arbitrary PHP code via unknown vectors.
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 confidenceMultiple vulnerabilities in Gallery 3 versions prior to 3.0.4 allow remote attackers to execute arbitrary PHP code on the affected system. The exact attack vectors are unspecified in the CVE description, but the impact is Remote Code Execution (RCE).
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<= 3.0.3= 3.0= 3.0.1= 3.0.2CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 Gallery 3 installationSearch the web server document root for Gallery 3 files such as index.php, lib/version.php, or the gallery3 directory. Common paths include /var/www/html/gallery3, /www/gallery3, or C:\inetpub\wwwroot\gallery3. Check for the presence of Gallery's main index.php file.Affected if Gallery 3 is found on the system but its version cannot be determined or verified
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Determine installed Gallery 3 versionOpen the version file typically located at lib/version.php within the Gallery 3 installation directory. Look for a line defining the version constant, such as 'define("G3_VERSION", "x.x.x");'. Alternatively, check the admin dashboard footer or the README file for version information.Affected if The installed version is 3.0, 3.0.1, 3.0.2, or any version less than 3.0.4
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Verify PHP execution is enabled in web serverCheck the web server configuration (Apache httpd.conf, Nginx config, or IIS web.config) for PHP handler mappings. Confirm that .php files are mapped to a PHP interpreter. Look for directives such as AddHandler php-script or fastcgi passes.Affected if PHP execution is permitted on the server and Gallery 3 is accessible via the web, allowing the RCE vulnerability to be exploited
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Confirm Gallery 3 is network accessibleAttempt to access the Gallery 3 URL from a browser or via curl/wget: curl -I http://TARGET/gallery3/. Check if the homepage or admin login page loads. Verify the web server is listening on ports 80 or 443.Affected if Gallery 3 is exposed to network or internet access, making the RCE flaw remotely exploitable
The system is affected if Gallery 3 version 3.0 through 3.0.3 is installed, is accessible over the network, and PHP execution is enabled on the web server.
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 dataUpgrade Gallery 3 to version 3.0.4 or later to remediate these vulnerabilities. If upgrading is not immediately feasible, consider restricting network access to the Gallery 3 installation as a temporary compensating control.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-4343 — 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-2012-4343 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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