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CVE-2020-25812 · cross-distro fix matrix

CVE-2020-25812: An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-25812 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • mediawiki→ fixed in1:1.35.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mediawiki

Debian bookworm

Source: Debian Security Tracker

  • mediawiki→ fixed in1:1.35.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mediawiki

Debian trixie

Source: Debian Security Tracker

  • mediawiki→ fixed in1:1.35.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y mediawiki
Are YOU affected by CVE-2020-25812?

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
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