# CVE-2026-3764: SourceCodester Client Database Management System superadmin_user_update.php improper authorization

> Remote attackers can exploit improper authorization in superadmin_user_update.php to modify user data or escalate privileges.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Mar 2026
- **Updated:** 10 Mar 2026
- **Also known as:** GHSA-h82f-3qc4-wmjf

## What is CVE-2026-3764?

CVE-2026-3764 is a medium-severity missing authorization vulnerability in SourceCodester Client Database Management System, published on 8 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was determined in SourceCodester Client Database Management System 1.0. The impacted element is an unknown function of the file /superadmin_user_update.php. This manipulation causes improper authorization. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-285 (Improper Authorization), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-3764?

It affects 1 product.


Products: Lerouxyxchire Client Database Management System.

## How do I fix CVE-2026-3764?

No fix has been published for CVE-2026-3764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3764 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3764 exists.

## Other vulnerabilities in SourceCodester Client Database Management System

- [CVE-2025-46188](https://insights.sbomify.com/CVE-2025-46188/): SQL injection in n/a (critical 9.8)
- [CVE-2025-46189](https://insights.sbomify.com/CVE-2025-46189/): SQL injection in n/a (critical 9.8)
- [CVE-2025-46190](https://insights.sbomify.com/CVE-2025-46190/): SQL injection in n/a (critical 9.8)
- [CVE-2025-46191](https://insights.sbomify.com/CVE-2025-46191/): File upload in n/a (critical 9.8)
- [CVE-2025-46192](https://insights.sbomify.com/CVE-2025-46192/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3764 and fix it if it is affected.

What it is: CVE-2026-3764 is a medium-severity missing authorization vulnerability in SourceCodester Client Database Management System, published on 8 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-2026-3764 exists.

Affected product: SourceCodester Client Database Management 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-2026-3764/ (Markdown: https://insights.sbomify.com/CVE-2026-3764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3764
- OSV: https://osv.dev/vulnerability/CVE-2026-3764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3764/
Summaries are generated and may contain mistakes; the official description above is the record.