# CVE-2017-0371: Information disclosure in n/a

> Remote attackers can discover visitor IP addresses via CSS injection in MediaWiki, exposing user privacy.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** Yes
- **Published:** 18 Feb 2022
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-0371, GHSA-3hc7-mwwv-ff3c

## What is CVE-2017-0371?

CVE-2017-0371 is a high-severity vulnerability in Mediawiki Mediawiki, published on 18 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MediaWiki before 1.23.16, 1.24.x through 1.27.x before 1.27.2, and 1.28.x before 1.28.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element that has an attacker-controlled URL in the title attribute.

## Which versions are affected by CVE-2017-0371?

It affects 1 product.


Products: Mediawiki Mediawiki.

## How do I fix CVE-2017-0371?

Upgrade to a fixed version.

## Is CVE-2017-0371 being exploited?

There is no known exploitation of CVE-2017-0371 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-2017-0371 and fix it if it is affected.

What it is: CVE-2017-0371 is a high-severity vulnerability in Mediawiki Mediawiki, published on 18 Feb 2022. 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-2017-0371 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-2017-0371/ (Markdown: https://insights.sbomify.com/CVE-2017-0371/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-0371
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-0371
- OSV: https://osv.dev/vulnerability/CVE-2017-0371

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-0371/
Summaries are generated and may contain mistakes; the official description above is the record.