CVE-2012-4421 · cross-distro fix matrix

CVE-2012-4421: The create_post function in wp-includes/class-wp-atom-server.php in WordPress before 3.4.2 does not perform a capability check, which allows remote authenticated users to bypass intended access restrictions and publish new posts by leveraging the Contributor role and using the Atom Publishing Protoc

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

Fix per ecosystem

Each block below is a distro release where CVE-2012-4421 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

wordpress→ fixed in3.4.2+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wordpress
```

Debian bookworm

Source: Debian Security Tracker

wordpress→ fixed in3.4.2+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wordpress
```

Debian trixie

Source: Debian Security Tracker

wordpress→ fixed in3.4.2+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wordpress
```

Are YOU affected by CVE-2012-4421?

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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