Debian LTS Advisory DLA-2779-1                [email protected]
https://www.debian.org/lts/security/                      Markus Koschany
October 09, 2021                              https://wiki.debian.org/LTS

Package        : mediawiki
Version        : 1:1.27.7-1~deb9u10
CVE ID         : CVE-2021-35197 CVE-2021-41798 CVE-2021-41799

Multiple security issues were found in MediaWiki, a website engine for
collaborative work, which could result in cross-site scripting,
denial of service and certain unintended API access.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your mediawiki packages.

For the detailed security status of mediawiki please refer to
its security tracker page at:

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