CVE-2026-6189
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 has been found in SourceCodester Pharmacy Sales and Inventory System 1.0. The affected element is an unknown function of the file /ajax.php?action=login. Such manipulation of the argument Username leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public 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 SourceCodester Pharmacy Sales and Inventory System 1.0 where the Username parameter in /ajax.php?action=login is not properly sanitized, allowing attackers to inject malicious SQL queries through the login form.
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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/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 SourceCodester Pharmacy Sales and Inventory System is installedLocate the web application files. Check for the presence of /ajax.php and login-related files in the web root directory.Affected if The application files are present and the system is running SourceCodester Pharmacy Sales and Inventory System.
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Verify the application version is 1.0Look for a version file, README, or any version identifier within the application directory. Check the main index.php or configuration files for a version number.Affected if The installed version is 1.0, matching the affected version listed in the CVE.
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Locate the vulnerable login endpointNavigate to the web root and confirm the existence of ajax.php. Access the file and locate the code handling the action=login parameter.Affected if The file /ajax.php exists and contains code handling the login action.
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Inspect the Username parameter handling in ajax.phpOpen ajax.php and search for the login function. Examine how the Username parameter is processed - look for direct string concatenation in SQL queries versus parameterized queries.Affected if The code uses direct SQL query construction (string concatenation or interpolation) with the Username parameter without using prepared statements or parameter binding.
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Confirm the database query is vulnerable to SQL injectionReview the SQL query code in the login function. Verify that user-supplied input from the Username field is inserted directly into the query string without sanitization, escaping, or parameterization.Affected if The Username parameter is passed directly into the SQL query without any form of input sanitization, escaping, or use of prepared statements.
A user is affected if they are running SourceCodester Pharmacy Sales and Inventory System version 1.0 with the ajax.php login endpoint using unsanitized Username parameter 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 dataReplace direct SQL query construction with parameterized queries (prepared statements) for all database operations in the login functionality. Additionally, implement input validation and consider deploying a WAF for defense-in-depth.
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- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-6189 — 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-2026-6189 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
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