CVE-2019-16738 MediaWiki information disclosure
Attackers can disclose suppressed usernames via the Special:Redirect User ID Lookup feature in MediaWiki.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-16738?
CVE-2019-16738 is a medium-severity vulnerability in Debian Debian Linux, published on 26 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.
Weakness: CWE-862
Which versions are affected by CVE-2019-16738?
6 open source packages ship an affected version, including mediawiki/core. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki/core Packagist | From 1.31.0 | 1.31.4 |
mediawiki/core Packagist | From 1.31.0 | 1.31.4 |
mediawiki/core Packagist | From 1.32.0 | 1.32.4 |
mediawiki/core Packagist | From 1.32.0 | 1.32.4 |
mediawiki/core Packagist | From 1.33.0 | 1.33.1 |
mediawiki/core Packagist | From 1.33.0 | 1.33.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Mediawiki Mediawiki.
How do I fix CVE-2019-16738?
Upgrade mediawiki/core to a fixed version for your release line: 1.31.4, 1.32.4 or 1.33.1.
Is CVE-2019-16738 being exploited?
There is no known exploitation of CVE-2019-16738 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-16738, DSA-4545-1, GHSA-7hwr-f745-5rwq, MGASA-2019-0301, UBUNTU-CVE-2019-16738.