# CVE-2026-30574: Business logic in n/a

> Attackers can manipulate sales requests to purchase quantities exceeding available stock, bypassing inventory validation in the pharmacy management system.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Mar 2026
- **Updated:** 27 Mar 2026
- **Also known as:** GHSA-3wqr-83x4-348r

## What is CVE-2026-30574?

CVE-2026-30574 is a high-severity vulnerability in n/a, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Business Logic vulnerability exists in SourceCodester Pharmacy Product Management System 1.0 in the add-sales.php file. The application fails to verify if the requested sales quantity (txtqty) exceeds the available stock level. An attacker can manipulate the request to purchase a quantity that is significantly higher than the actual available stock.

Weakness: CWE-841 (Improper Enforcement of Behavioral Workflow)

## Which versions are affected by CVE-2026-30574?

It affects 1 product.


Products: Senior-Walter Web-Based Pharmacy Product Management System.

## How do I fix CVE-2026-30574?

No fix has been published for CVE-2026-30574 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30574 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30574 exists.

## Other vulnerabilities in n/a

- [CVE-2025-45997](https://insights.sbomify.com/CVE-2025-45997/): File upload in n/a (high 8.6)
- [CVE-2025-56274](https://insights.sbomify.com/CVE-2025-56274/): Privilege escalation in n/a (high 8.1)
- [CVE-2026-30573](https://insights.sbomify.com/CVE-2026-30573/): Business logic in n/a (high 7.5)
- [CVE-2026-30575](https://insights.sbomify.com/CVE-2026-30575/): Business logic in n/a (high 7.5)
- [CVE-2026-30576](https://insights.sbomify.com/CVE-2026-30576/): Business logic in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30574 and fix it if it is affected.

What it is: CVE-2026-30574 is a high-severity vulnerability in n/a, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30574 exists.

Affected product: n/a. 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-2026-30574/ (Markdown: https://insights.sbomify.com/CVE-2026-30574/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30574
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30574
- OSV: https://osv.dev/vulnerability/CVE-2026-30574

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30574/
Summaries are generated and may contain mistakes; the official description above is the record.