Debian: DSA-4545-1 Moderate: MediaWiki Information Exposure

It was discovered that the Special:Redirect functionality of MediaWiki,
a website engine for collaborative work, could expose suppressed user
names, resulting in an information leak.

For the oldstable distribution (stretch), this problem has been fixed
in version 1:1.27.7-1~deb9u2.

For the stable distribution (buster), this problem has been fixed in
version 1:1.31.4-1~deb10u1.

We recommend that you upgrade your mediawiki packages.

For the detailed security status of mediawiki please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/mediawiki

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/