# CVE-2026-30520: SQL injection in n/a

> An authenticated attacker can inject malicious SQL commands via the borrower_id parameter in the save_loan action to read or modify database contents.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **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:** 31 Mar 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-v3wc-4m78-26x4

## What is CVE-2026-30520?

CVE-2026-30520 is a medium-severity SQL injection vulnerability in n/a, published on 31 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A Blind SQL Injection vulnerability exists in SourceCodester Loan Management System v1.0. The vulnerability is located in the ajax.php file (specifically the save_loan action). The application fails to properly sanitize user input supplied to the "borrower_id" parameter in a POST request, allowing an authenticated attacker to inject malicious SQL commands.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-30520?

It affects 1 product.


Products: Oretnom23 Loan Management System.

## How do I fix CVE-2026-30520?

No fix has been published for CVE-2026-30520 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30520 being exploited?

There is no known exploitation of CVE-2026-30520 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-30522](https://insights.sbomify.com/CVE-2026-30522/): Business logic in n/a (medium 6.5)
- [CVE-2026-30523](https://insights.sbomify.com/CVE-2026-30523/): Business logic in n/a (medium 6.5)
- [CVE-2026-30521](https://insights.sbomify.com/CVE-2026-30521/): Business logic in n/a (medium 6.5)
- [CVE-2026-3702](https://insights.sbomify.com/CVE-2026-3702/): SourceCodester Loan Management System index.php cross site scripting (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30520 and fix it if it is affected.

What it is: CVE-2026-30520 is a medium-severity SQL injection vulnerability in n/a, published on 31 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-30520 in the wild and no public exploit code.

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-2026-30520/ (Markdown: https://insights.sbomify.com/CVE-2026-30520/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30520
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30520
- OSV: https://osv.dev/vulnerability/CVE-2026-30520

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30520/
Summaries are generated and may contain mistakes; the official description above is the record.