# CVE-2026-19839: SourceCodester Simple Doctors Appointment System save_file.php save_doctor unrestricted upload

> Remote attackers can upload malicious files via the save_doctor function in the Simple Doctors Appointment System, potentially leading to code execution.

- **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:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Aug 2026
- **Updated:** 18 Aug 2026
- **Also known as:** GHSA-26xf-2hc8-jcmg

## What is CVE-2026-19839?

CVE-2026-19839 is a medium-severity vulnerability in SourceCodester Simple Doctors Appointment System, published on 14 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was detected in SourceCodester Simple Doctors Appointment System 1.0. This issue affects the function save_doctor of the file /save_file.php. The manipulation results in unrestricted upload. The attack can be executed remotely. The exploit is now public and may be used.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-19839?


## How do I fix CVE-2026-19839?

No fix has been published for CVE-2026-19839 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19839 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19839 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19839 and fix it if it is affected.

What it is: CVE-2026-19839 is a medium-severity vulnerability in SourceCodester Simple Doctors Appointment System, published on 14 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19839 exists.

Affected product: SourceCodester Simple Doctors Appointment 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-2026-19839/ (Markdown: https://insights.sbomify.com/CVE-2026-19839/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19839
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19839
- OSV: https://osv.dev/vulnerability/CVE-2026-19839

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-19839/
Summaries are generated and may contain mistakes; the official description above is the record.