# CVE-2014-5241: Cross-site request forgery in n/a

> Remote attackers can exploit a JSONP endpoint flaw in MediaWiki to perform CSRF attacks and access sensitive information via crafted SWF content.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 22 Aug 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-5241, GHSA-3qgm-2h8m-458c

## What is CVE-2014-5241?

CVE-2014-5241 is a medium-severity vulnerability in Mediawiki Mediawiki, published on 22 Aug 2014. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and obtain sensitive information, via a crafted OBJECT element with SWF content consistent with a restricted character set.

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

## Which versions are affected by CVE-2014-5241?

It affects 1 product.


Products: Mediawiki Mediawiki.

## How do I fix CVE-2014-5241?

Upgrade to a fixed version.

## Is CVE-2014-5241 being exploited?

There is no known exploitation of CVE-2014-5241 in the wild and no public exploit code.

## Other vulnerabilities in Mediawiki Mediawiki

- [CVE-2023-37303](https://insights.sbomify.com/CVE-2023-37303/): Denial of service in n/a (critical 9.8)
- [CVE-2022-29904](https://insights.sbomify.com/CVE-2022-29904/): SQL injection in n/a (critical 9.8)
- [CVE-2022-29906](https://insights.sbomify.com/CVE-2022-29906/): Missing authorization in n/a (critical 9.8)
- [CVE-2022-28205](https://insights.sbomify.com/CVE-2022-28205/): Business logic in n/a (critical 9.8)
- [CVE-2022-28206](https://insights.sbomify.com/CVE-2022-28206/): Missing authorization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-5241 and fix it if it is affected.

What it is: CVE-2014-5241 is a medium-severity vulnerability in Mediawiki Mediawiki, published on 22 Aug 2014. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2014-5241 in the wild and no public exploit code.

Affected product: Mediawiki Mediawiki. 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-2014-5241/ (Markdown: https://insights.sbomify.com/CVE-2014-5241/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-5241
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-5241
- OSV: https://osv.dev/vulnerability/CVE-2014-5241

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-5241/
Summaries are generated and may contain mistakes; the official description above is the record.