# CVE-2024-34701: CreateWiki vulnerable to impersonation of wiki requester

> Attackers can impersonate wiki requesters by matching local user IDs across a wiki farm, allowing unauthorized actions on request queues.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/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:** 13 May 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-89fx-77w7-rc64

## What is CVE-2024-34701?

CVE-2024-34701 is a medium-severity missing authorization vulnerability in miraheze CreateWiki, published on 13 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CreateWiki is Miraheze's MediaWiki extension for requesting & creating wikis. It is possible for users to be considered as the requester of a specific wiki request if their local user ID on any wiki in a wiki farm matches the local ID of the requester at the wiki where the wiki request was made. This allows them to go to that request entry's on Special:RequestWikiQueue on the wiki where their local user ID matches and take any actions that the wiki requester is allowed to take from there.

Commit 02e0f298f8d35155c39aa74193cb7b867432c5b8 fixes the issue. Important note about the fix: This vulnerability has been fixed by disabling access to the REST API and special pages outside of the wiki configured as the "global wiki" in `$wgCreateWikiGlobalWiki` in a user's MediaWiki settings.

As a workaround, it is possible to disable the special pages outside of one's own global wiki by doing something similar to `miraheze/mw-config` commit e5664995fbb8644f9a80b450b4326194f20f9ddc that is adapted to one's own setup. As for the REST API, before the fix, there wasn't any REST endpoint that allowed one to make writes. Regardless, it is possible to also disable it outside of the global wiki by using `$wgCreateWikiDisableRESTAPI` and `$wgConf` in the configuration for one's own wiki farm..

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2024-34701?


## How do I fix CVE-2024-34701?

No fix has been published for CVE-2024-34701 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-34701 being exploited?

There is no known exploitation of CVE-2024-34701 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-34701 and fix it if it is affected.

What it is: CVE-2024-34701 is a medium-severity missing authorization vulnerability in miraheze CreateWiki, published on 13 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-2024-34701 in the wild and no public exploit code.

Affected product: miraheze CreateWiki. 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-2024-34701/ (Markdown: https://insights.sbomify.com/CVE-2024-34701/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-34701
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-34701
- OSV: https://osv.dev/vulnerability/CVE-2024-34701

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-34701/
Summaries are generated and may contain mistakes; the official description above is the record.