# CVE-2026-3755: SourceCodester Sales and Inventory System POST check_customer_details.php sql injection

> Remote attackers can exploit SQL injection in the check_customer_details.php handler to read or modify database contents.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Mar 2026
- **Updated:** 11 Mar 2026
- **Also known as:** GHSA-3392-j23h-p968

## What is CVE-2026-3755?

CVE-2026-3755 is a medium-severity SQL injection vulnerability in SourceCodester Sales and Inventory System, published on 8 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was determined in SourceCodester Sales and Inventory System 1.0. This impacts an unknown function of the file /check_customer_details.php of the component POST Handler. Executing a manipulation of the argument stock_name1 can lead to sql injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-3755?

It affects 1 product.


Products: Ahsanriaz26gmailcom Sales and Inventory System.

## How do I fix CVE-2026-3755?

No fix has been published for CVE-2026-3755 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3755 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3755 exists.

## Other vulnerabilities in SourceCodester Sales and Inventory System

- [CVE-2026-30562](https://insights.sbomify.com/CVE-2026-30562/): Cross-site scripting in n/a (critical 9.3)
- [CVE-2026-30556](https://insights.sbomify.com/CVE-2026-30556/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2026-30557](https://insights.sbomify.com/CVE-2026-30557/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2026-30558](https://insights.sbomify.com/CVE-2026-30558/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2026-30559](https://insights.sbomify.com/CVE-2026-30559/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3755 and fix it if it is affected.

What it is: CVE-2026-3755 is a medium-severity SQL injection vulnerability in SourceCodester Sales and Inventory System, published on 8 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3755 exists.

Affected product: SourceCodester Sales and Inventory System. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-3755/ (Markdown: https://insights.sbomify.com/CVE-2026-3755/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3755
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3755
- OSV: https://osv.dev/vulnerability/CVE-2026-3755

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-3755/
Summaries are generated and may contain mistakes; the official description above is the record.