CVE-2025-12327
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 · uneditedA vulnerability was determined in shawon100 RUET OJ up to 18fa45b0a669fa1098a0b8fc629cf6856369d9a5. This issue affects some unknown processing of the file /description.php. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceSQL injection vulnerability in shawon100 RUET OJ (Online Judge) in the /description.php file. The ID parameter is not properly sanitized before being used in SQL queries, allowing remote attackers to inject malicious SQL code.
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<= 2022-10-19CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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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Locate the RUET OJ installationSearch the web server document root for the /description.php file, typically found in the web root directory of the RUET OJ application.Affected if The file exists in the web-accessible directory.
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Check the application versionExamine the source code of description.php or check version files (such as version.php, CHANGELOG.txt, or a config file) in the application root for a build or release date.Affected if The version or build date is on or before 2022-10-19.
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Verify the vulnerable parameter existsInspect the description.php file and locate the code handling the ID parameter (e.g., $_GET['id'] or $_POST['id']). Confirm it is used directly in an SQL query without apparent sanitization or prepared statements.Affected if The ID parameter is retrieved and embedded in a SQL query without parameterized binding.
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Test the endpoint for SQL injectionSend a crafted request to /description.php?id=1' (or similar) and observe the application response for SQL syntax errors, unusual database errors, or changes in behavior.Affected if The application returns SQL error messages or behaves unexpectedly when special characters are passed in the ID parameter.
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Check database user privilegesReview the database configuration file (commonly config.php or db.php) to determine the database user permissions assigned to the application.Affected if The database user has elevated privileges (such as DROP, CREATE, or administrative access) beyond what the application requires.
If the RUET OJ application is installed with version dated 2022-10-19 or earlier and the description.php file handles the ID parameter without prepared statements or input sanitization, the environment is likely affected by CVE-2025-12327.
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 dataReplace dynamic SQL queries with parameterized queries/prepared statements. Additionally, implement input validation for the ID parameter and apply the principle of least privilege to database accounts.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-12327 — 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-2025-12327 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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- Version or environment caveats, and links to real fixes
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