CVE-2026-7742
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 CodeAstro Online Classroom 1.0. The affected element is an unknown function of the file /OnlineClassroom/facultylogin. Executing a manipulation of the argument fid can lead to sql injection. The attack can be executed 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 · high confidenceSQL injection vulnerability in CodeAstro Online Classroom 1.0's facultylogin function allows remote attackers to inject malicious SQL queries via the fid parameter. The vulnerability exists in the /OnlineClassroom/facultylogin file where user input is not properly sanitized before being used in database queries.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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 CodeAstro Online Classroom installationLocate the application directory named 'OnlineClassroom' on the web server, typically found in the web root (e.g., /var/www/html/OnlineClassroom or C:\inetpub\wwwroot\OnlineClassroom)Affected if The OnlineClassroom directory exists on the server
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Verify application version is 1.0Look for a version file, about page, or any file containing '1.0' within the OnlineClassroom directory structureAffected if The installed version is 1.0
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Confirm facultylogin file existsCheck for the presence of the file at /OnlineClassroom/facultylogin (or facultylogin.php depending on extension) within the application directoryAffected if The facultylogin file exists in the expected location
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Examine fid parameter handling in facultyloginOpen the facultylogin file and search for direct usage of $_POST['fid'] or $_GET['fid'] in SQL query strings without sanitization functions (such as mysqli_real_escape_string, parameterized queries, or prepared statements)Affected if The fid parameter is directly concatenated into SQL queries without escaping or parameterization
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Verify database connectivity existsCheck if the facultylogin file contains database connection code (mysqli_connect, mysql_connect, PDO) and is configured to connect to a live databaseAffected if The application is connected to a functional database and the vulnerable code is reachable
A user is affected if CodeAstro Online Classroom 1.0 is installed and the facultylogin file contains direct use of the fid parameter in unsanitized SQL queries.
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 or prepared statements. Implement strict input validation on the fid parameter and apply principle of least privilege to database accounts.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-7742 — 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-2026-7742 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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