CVE-2026-39110
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 · uneditedSQL Injection vulnerability in Apartment Visitors Management System Apartment Visitors Management System V1.1 in the contactno parameter of the forgot password page (forgot-password.php). This allows an unauthenticated attacker to manipulate backend SQL queries during authentication and retrieve sensitive database contents.
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 the Apartment Visitors Management System V1.1 allows unauthenticated attackers to inject malicious SQL through the contactno parameter in forgot-password.php, enabling manipulation of backend queries to exfiltrate sensitive database contents.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/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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Identify the installed version of Apartment Visitors Management SystemLocate the application files and check for a version indicator in the source code, changelog, or configuration files. Common locations include a 'version' file, the main index.php header comment, or a 'config.php' file.Affected if The installed version is V1.1 or another version that includes the vulnerable forgot-password.php component.
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Verify forgot-password.php is web-accessibleAttempt to access the forgot-password.php page via HTTP/HTTPS request (e.g., GET /forgot-password.php) to confirm the file exists and is reachable in the deployed environment.Affected if The file returns a valid HTTP response, indicating the vulnerable page is accessible.
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Inspect the contactno parameter handling in forgot-password.phpOpen forgot-password.php and locate the code that handles the 'contactno' parameter from POST or GET requests. Search for SQL queries that use this parameter directly without sanitization or prepared statements.Affected if The source code shows the contactno parameter being used directly in an SQL query (e.g., SELECT * FROM users WHERE contactno='$contactno') without escaping, parameterization, or input validation.
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Test for SQL injection with a benign payloadSubmit a crafted contactno parameter value such as '1' OR '1'='1 to the forgot-password.php form and observe the application's response. If the application returns different behavior than expected (e.g., error messages, unexpected data), the parameter may be vulnerable.Affected if The application exhibits unexpected behavior or returns database errors indicating SQL syntax is being interpreted.
A user is affected if they are running Apartment Visitors Management System V1.1 with the forgot-password.php page accessible and the contactno parameter used 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/prepared statements in forgot-password.php, implement strict input validation on the contactno parameter, and ensure the database account uses least privilege.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-39110 — 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-2026-39110 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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