CVE-2020-6163 Cross-site scripting in n/a
Cross-site scripting vulnerability in WikibaseMediaInfo extension allows attackers to inject malicious scripts via improper template syntax.
- 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
What is CVE-2020-6163?
CVE-2020-6163 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 8 Jan 2020. 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 WikibaseMediaInfo extension 1.35 for MediaWiki allows XSS because of improper template syntax within the PropertySuggestionsWidget template (in the templates/search/PropertySuggestionsWidget.mustache+dom file).
Weakness: CWE-79
Which versions are affected by CVE-2020-6163?
1 open source package ship an affected version, including mediawiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki Bitnami | From 1.35.0 | 1.35.1 |
Products include Mediawiki Mediawiki.
How do I fix CVE-2020-6163?
Upgrade mediawiki to 1.35.1 or later.
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-2020-6163 being exploited?
There is no known exploitation of CVE-2020-6163 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as BIT-mediawiki-2020-6163, GHSA-grfp-qrv2-2w59.