CVE-2025-11736
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 flaw has been found in itsourcecode Online Examination System 1.0. Affected by this issue is some unknown functionality of the file /index.php. This manipulation of the argument Username causes sql injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.
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 itsourcecode Online Examination System 1.0 allows remote attackers to manipulate the Username argument in /index.php to inject malicious SQL queries, potentially allowing data exfiltration, authentication bypass, or complete database 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= 1.0CVSS 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:3.1/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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Confirm Online Examination System installationLocate the web application directory and identify if the Online Examination System (by Angeljudesuarez/itsourcecode) is deployed. Check for the presence of index.php in the web root.Affected if The application is present at /index.php and handles user authentication
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Verify the exact version numberCheck version.php, README, or any version file within the application directory for the exact version string.Affected if The installed version is exactly 1.0 (matching the affected range = 1.0)
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Inspect index.php for the Username parameter handlingOpen /index.php in the application root and locate the code that processes the Username form field. Search for SQL query construction involving the Username input.Affected if The Username parameter is directly concatenated into an SQL query without visible sanitization or prepared statements
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Check database interaction code for parameterized queriesExamine the login/authentication logic in index.php or included files for the use of prepared statements, parameterized queries, or input validation functions on the Username field.Affected if No prepared statements or parameterized queries are used for the Username parameter in the SQL queries
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Test the Username parameter for SQL injection (authorized testing only)If authorized, submit a benign SQL payload (e.g., Username: ' OR '1'='1) in the login form and observe the application's response for SQL error messages or unexpected behavior.Affected if The application reflects SQL syntax errors or behaves unexpectedly, indicating unsanitized input is executed as SQL
The environment is affected if the Online Examination System version 1.0 is installed and the Username parameter in /index.php is processed without parameterized queries or input sanitization.
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 dataImplement parameterized queries/prepared statements for the Username parameter and all user inputs; perform input validation and apply least-privilege database account restrictions.
- Consultation6.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,600.
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Free · runs locallyCheck whether your project pulls in CVE-2025-11736 — 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-2025-11736 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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