# CVE-2024-34502: Cross-site request forgery in n/a

> Attackers can force users to merge lexemes without consent by exploiting missing CSRF protection in the Special:MergeLexemes page.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 May 2024
- **Updated:** 4 Nov 2025
- **Also known as:** BIT-mediawiki-2024-34502, GHSA-rq44-cfp6-2c3c

## What is CVE-2024-34502?

CVE-2024-34502 is a critical vulnerability in Fedoraproject Fedora, published on 5 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2024-34502?

1 open source package ship an affected version, including mediawiki. It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mediawiki` | Bitnami | All versions | 1.41.1 |

Products: Fedoraproject Fedora, Mediawiki Mediawiki.

## How do I fix CVE-2024-34502?

Upgrade mediawiki to 1.41.1 or later.

## Is CVE-2024-34502 being exploited?

There is no known exploitation of CVE-2024-34502 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-34502 and fix it if it is affected.

What it is: CVE-2024-34502 is a critical vulnerability in Fedoraproject Fedora, published on 5 May 2024. 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-2024-34502 in the wild and no public exploit code.

Affected packages and fixed versions:
- mediawiki (Bitnami): affected all versions; fixed in 1.41.1

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-2024-34502/ (Markdown: https://insights.sbomify.com/CVE-2024-34502/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-34502
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-34502
- OSV: https://osv.dev/vulnerability/CVE-2024-34502

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-34502/
Summaries are generated and may contain mistakes; the official description above is the record.