Debian: DSA-4592-1: mediawiki security update
Summary
For the oldstable distribution (stretch), this problem has been fixed
in version 1:1.27.7-1~deb9u3.
For the stable distribution (buster), this problem has been fixed in
version 1:1.31.6-1~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/