# CVE-2023-4871: SourceCodester Contact Manager App delete.php sql injection

> Remote attackers can exploit SQL injection in delete.php to read or modify database contents in SourceCodester Contact Manager App.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 10 Sep 2023
- **Updated:** 26 Sep 2024
- **Also known as:** GHSA-5f2g-4wwf-xc25

## What is CVE-2023-4871?

CVE-2023-4871 is a medium-severity SQL injection vulnerability in SourceCodester Contact Manager App, published on 10 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability classified as critical was found in SourceCodester Contact Manager App 1.0. This vulnerability affects unknown code of the file delete.php. The manipulation of the argument contact/contactName leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-239356.

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

## Which versions are affected by CVE-2023-4871?

It affects 1 product.


Products: Contact Manager App Project Contact Manager App.

## How do I fix CVE-2023-4871?

No fix has been published for CVE-2023-4871 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4871 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4871 exists.

## Other vulnerabilities in SourceCodester Contact Manager App

- [CVE-2023-4872](https://insights.sbomify.com/CVE-2023-4872/): SourceCodester Contact Manager App add.php sql injection (medium 6.3)
- [CVE-2023-4868](https://insights.sbomify.com/CVE-2023-4868/): SourceCodester Contact Manager App add.php cross-site request forgery (medium 4.3)
- [CVE-2023-4869](https://insights.sbomify.com/CVE-2023-4869/): SourceCodester Contact Manager App update.php cross-site request forgery (medium 4.3)
- [CVE-2023-4870](https://insights.sbomify.com/CVE-2023-4870/): SourceCodester Contact Manager App Contact Information index.php cross site scripting (low 3.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4871 and fix it if it is affected.

What it is: CVE-2023-4871 is a medium-severity SQL injection vulnerability in SourceCodester Contact Manager App, published on 10 Sep 2023. 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-2023-4871 exists.

Affected product: SourceCodester Contact Manager App. 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-2023-4871/ (Markdown: https://insights.sbomify.com/CVE-2023-4871/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4871
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4871
- OSV: https://osv.dev/vulnerability/CVE-2023-4871

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4871/
Summaries are generated and may contain mistakes; the official description above is the record.