# CVE-2023-7331: PKrystian Full-Stack-Bank User sql injection

> Remote attackers can exploit SQL injection in the User Handler to read or modify data in the Full-Stack-Bank web application.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Dec 2025
- **Updated:** 2 Jan 2026
- **Also known as:** GHSA-q49x-mf7w-873r

## What is CVE-2023-7331?

CVE-2023-7331 is a medium-severity SQL injection vulnerability in PKrystian Full-Stack-Bank, published on 31 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was detected in PKrystian Full-Stack-Bank up to bf73a0179e3ff07c0d7dc35297cea0be0e5b1317. This vulnerability affects unknown code of the component User Handler. Performing manipulation results in sql injection. It is possible to initiate the attack remotely. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The patch is named 25c9965a872c704f3a9475488dc5d3196902199a. It is suggested to install a patch to address this issue.

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-2023-7331?


## How do I fix CVE-2023-7331?

No fix has been published for CVE-2023-7331 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-7331 being exploited?

There is no known exploitation of CVE-2023-7331 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-7331 and fix it if it is affected.

What it is: CVE-2023-7331 is a medium-severity SQL injection vulnerability in PKrystian Full-Stack-Bank, published on 31 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-7331 in the wild and no public exploit code.

Affected product: PKrystian Full-Stack-Bank. 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-2023-7331/ (Markdown: https://insights.sbomify.com/CVE-2023-7331/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-7331
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-7331
- OSV: https://osv.dev/vulnerability/CVE-2023-7331

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-7331/
Summaries are generated and may contain mistakes; the official description above is the record.