CVE-2021-44857 · cross-distro fix matrix

CVE-2021-44857: An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a priv

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-44857 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mediawiki→ fixed in1:1.35.4-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Debian bookworm

Source: Debian Security Tracker

mediawiki→ fixed in1:1.35.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Debian trixie

Source: Debian Security Tracker

mediawiki→ fixed in1:1.35.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mediawiki
```

Are YOU affected by CVE-2021-44857?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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