CVE-2017-20138
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 found in Itech Auction Script 6.49. It has been classified as critical. This affects an unknown part of the file /mcategory.php. The manipulation of the argument mcid with the input 4' AND 1734=1734 AND 'Ggks'='Ggks leads to sql injection (Blind). It is possible to initiate the attack remotely.
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 confidenceA blind SQL injection vulnerability exists in Itech Auction Script 6.49 in the /mcategory.php file. The mcid parameter accepts unsanitized input, allowing attackers to inject arbitrary SQL queries. The provided proof-of-concept demonstrates a boolean-based blind SQL injection attack using '4' AND 1734=1734 AND 'Ggks'='Ggks'. This remote, critical-severity flaw enables potential data exfiltration or 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= 6.49CVSS 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.
-
Verify Itech Auction Script installation and versionLocate the script's main index file or admin panel, then check the version number displayed in the software or in a version file within the installation directory.Affected if The installed version is exactly 6.49
-
Confirm the vulnerable mcategory.php file existsLocate the /mcategory.php file within the web root directory of the Itech Auction Script installation.Affected if The file /mcategory.php exists in the web application directory
-
Check if the mcid parameter is accessibleAccess the URL endpoint with a GET request to /mcategory.php?mcid=1 and verify the application accepts and processes this parameter.Affected if The application responds to requests with the mcid parameter without returning a 404 or error
-
Inspect the mcategory.php code for unsanitized mcid parameter usageOpen mcategory.php and search for database query code that uses the mcid parameter without prepared statements, parameter binding, or input sanitization functions.Affected if The code contains SQL queries that directly incorporate the mcid parameter without sanitization or prepared statements
A system is affected if it runs Itechscripts Auction Script version 6.49 and contains the vulnerable mcategory.php file with unsanitized mcid parameter handling in 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 dataImplement parameterized queries (prepared statements) for all database queries using the mcid parameter in mcategory.php. Alternatively, implement strict input validation and proper escaping. Given the CVSS 9.8 critical rating and remote exploitability, immediate patching is required.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-20138 — 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-2017-20138 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data