# CVE-2026-9483: SourceCodester Student Grades Management System grades.php improper authorization

> Remote attackers can manipulate student_id to access or modify grades without proper authorization in the Student Grades Management System.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **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:** 25 May 2026
- **Updated:** 26 May 2026
- **Also known as:** GHSA-mc5h-x73m-wvcj

## What is CVE-2026-9483?

CVE-2026-9483 is a medium-severity missing authorization vulnerability in SourceCodester Student Grades Management System, published on 25 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in SourceCodester Student Grades Management System 1.0. Affected is an unknown function of the file grades.php. Performing a manipulation of the argument student_id results in improper authorization. The attack may be initiated remotely. The exploit has been made public and could be used.

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

## Which versions are affected by CVE-2026-9483?


## How do I fix CVE-2026-9483?

No fix has been published for CVE-2026-9483 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9483 being exploited?

There is no known exploitation of CVE-2026-9483 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9483 and fix it if it is affected.

What it is: CVE-2026-9483 is a medium-severity missing authorization vulnerability in SourceCodester Student Grades Management System, published on 25 May 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-2026-9483 in the wild and no public exploit code.

Affected product: SourceCodester Student Grades 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-2026-9483/ (Markdown: https://insights.sbomify.com/CVE-2026-9483/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9483
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9483
- OSV: https://osv.dev/vulnerability/CVE-2026-9483

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9483/
Summaries are generated and may contain mistakes; the official description above is the record.