A mediawiki security update has been released for Debian GNU/Linux 11 and 12 to address multiple security issues.

[SECURITY] [DSA 5520-1] mediawiki security update

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Debian Security Advisory DSA-5520-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 10, 2023 https://www.debian.org/security/faq
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Package : mediawiki
CVE ID : CVE-2023-3550 CVE-2023-45359 CVE-2023-45360 CVE-2023-45361
CVE-2023-45362 CVE-2023-45363 CVE-2023-45364

Multiple security issues were discovered in MediaWiki, a website engine
for collaborative work, which could result in cross-site scripting,
denial of service or information disclosure

For the oldstable distribution (bullseye), these problems have been fixed
in version 1:1.35.13-1~deb11u1.

For the stable distribution (bookworm), these problems have been fixed in
version 1:1.39.5-1~deb12u1.

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/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/