# CVE-2023-22910: Cross-site scripting in n/a

> Cross-site scripting in MediaWiki Wikibase allows JavaScript execution by staff or admin users without edit capabilities.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 Jan 2023
- **Updated:** 3 Apr 2025
- **Also known as:** BIT-mediawiki-2023-22910, GHSA-mxwv-hm79-63w8

## What is CVE-2023-22910?

CVE-2023-22910 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 20 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. There is XSS in Wikibase date formatting via wikibase-time-precision-* fields. This allows JavaScript execution by staff/admin users who do not intentionally have the editsitejs capability.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-22910?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mediawiki` | Bitnami | All versions | 1.35.9, 1.38.5, 1.39.1 |

Products: Mediawiki Mediawiki.

## How do I fix CVE-2023-22910?

Upgrade mediawiki to a fixed version for your release line: 1.35.9, 1.38.5 or 1.39.1.

## Is CVE-2023-22910 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22910 exists.

## 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-2023-22910 and fix it if it is affected.

What it is: CVE-2023-22910 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 20 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22910 exists.

Affected packages and fixed versions:
- mediawiki (Bitnami): affected all versions; fixed in 1.35.9, 1.38.5, 1.39.1

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-2023-22910/ (Markdown: https://insights.sbomify.com/CVE-2023-22910/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-22910
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-22910
- OSV: https://osv.dev/vulnerability/CVE-2023-22910

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-22910/
Summaries are generated and may contain mistakes; the official description above is the record.