# CVE-2024-26503: File upload in n/a

> Attackers can execute arbitrary code by uploading crafted files to the certbadge.php endpoint in Open eClass.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Mar 2024
- **Updated:** 28 Aug 2024
- **Also known as:** GHSA-gj96-4654-x98q

## What is CVE-2024-26503?

CVE-2024-26503 is a critical vulnerability in n/a, published on 14 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Unrestricted File Upload vulnerability in Greek Universities Network Open eClass v.3.15 and earlier allows attackers to run arbitrary code via upload of crafted file to certbadge.php endpoint.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2024-26503?

It affects 1 product.


Products: Openeclass Openeclass.

## How do I fix CVE-2024-26503?

No fix has been published for CVE-2024-26503 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-26503 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-26503 exists.

Public exploit code:

- Exploit for Open eClass – CVE-2024-26503: Unrestricted File Upload Leads to Remote Code Execution (github_poc): https://github.com/RoboGR00t/Exploit-CVE-2024-26503
- Open eClass 3.15 - RCE (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2024-38530](https://insights.sbomify.com/CVE-2024-38530/): Open eClass Platform allows Arbitrary File Upload in "modules/h5p/save.php" (critical 9.8)
- [CVE-2024-31777](https://insights.sbomify.com/CVE-2024-31777/): File upload in n/a (critical 9.8)
- [CVE-2026-22241](https://insights.sbomify.com/CVE-2026-22241/): Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE) (high 7.3)
- [CVE-2022-33116](https://insights.sbomify.com/CVE-2022-33116/): Path traversal in n/a (medium 6.5)
- [CVE-2017-7389](https://insights.sbomify.com/CVE-2017-7389/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-26503 and fix it if it is affected.

What it is: CVE-2024-26503 is a critical vulnerability in n/a, published on 14 Mar 2024. 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-2024-26503 exists.

Affected product: n/a. 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-2024-26503/ (Markdown: https://insights.sbomify.com/CVE-2024-26503/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-26503
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-26503
- OSV: https://osv.dev/vulnerability/CVE-2024-26503

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-26503/
Summaries are generated and may contain mistakes; the official description above is the record.