# CVE-2023-34959: Server-side request forgery in n/a

> Attackers can perform Server-Side Request Forgery in Chamilo LMS to obtain information on internal services via crafted requests in social and links tools.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jun 2023
- **Updated:** 6 Jan 2025
- **Also known as:** GHSA-xg93-7qj8-c5vg

## What is CVE-2023-34959?

CVE-2023-34959 is a medium-severity server-side request forgery vulnerability in Chamilo Chamilo Lms, published on 8 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue in Chamilo v1.11.* up to v1.11.18 allows attackers to execute a Server-Side Request Forgery (SSRF) and obtain information on the services running on the server via crafted requests in the social and links tools.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2023-34959?

It affects 1 product.


Products: Chamilo Chamilo Lms.

## How do I fix CVE-2023-34959?

No fix has been published for CVE-2023-34959 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-34959 being exploited?

There is no known exploitation of CVE-2023-34959 in the wild and no public exploit code.

## Other vulnerabilities in Chamilo Chamilo Lms

- [CVE-2025-50187](https://insights.sbomify.com/CVE-2025-50187/): Chamilo: Evaluation of untrusted user input leads to Remote Code Execution (critical 9.8)
- [CVE-2023-34944](https://insights.sbomify.com/CVE-2023-34944/): File upload in n/a (critical 9.8)
- [CVE-2022-27423](https://insights.sbomify.com/CVE-2022-27423/): SQL injection in n/a (critical 9.8)
- [CVE-2021-35414](https://insights.sbomify.com/CVE-2021-35414/): SQL injection in n/a (critical 9.8)
- [CVE-2019-13082](https://insights.sbomify.com/CVE-2019-13082/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-34959 and fix it if it is affected.

What it is: CVE-2023-34959 is a medium-severity server-side request forgery vulnerability in Chamilo Chamilo Lms, published on 8 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-34959 in the wild and no public exploit code.

Affected product: Chamilo Chamilo Lms. 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-2023-34959/ (Markdown: https://insights.sbomify.com/CVE-2023-34959/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34959
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34959
- OSV: https://osv.dev/vulnerability/CVE-2023-34959

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-34959/
Summaries are generated and may contain mistakes; the official description above is the record.