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.
- 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
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
Which versions are affected by CVE-2023-22910?
1 open source package ship an affected version, including mediawiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki Bitnami | All versions | 1.35.9, 1.38.5, 1.39.1 |
Products include 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.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
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
Sources
Also known as BIT-mediawiki-2023-22910, GHSA-mxwv-hm79-63w8.