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Debian Security Advisory DSA-4889-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
April 10, 2021                        https://www.debian.org/security/faq
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Package        : mediawiki
CVE ID         : CVE-2021-20270 CVE-2021-27291 CVE-2021-30152 CVE-2021-30159
                 CVE-2021-30154 CVE-2021-30155 CVE-2021-30157 CVE-2021-30158 

Multiple security issues were found in MediaWiki, a website engine for
collaborative work, which could result in incomplete page/blocking
protection, denial of service or cross-site scripting.

For the stable distribution (buster), these problems have been fixed in
version 1:1.31.14-1~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/

Mailing list: debian-security-announce@lists.debian.org