The plugin register. Used on 300,000+ sites
CMB2
5known security flaws found in CMB2
since April 2024
Safe from 2.13.2
Version 2.13.2 or later fixes all of them. A site on an older version is open to them.
Or let us look for you
When they were found.
DangerousMajorMinorAdvisory
What they could let someone do.
What could happen
- Cross-site scripting
Someone could make your pages run their own script in visitors' browsers, to steal logins, show a fake payment form or send people to a scam site.
How: The software puts text it was sent back onto a page without making it safe first, so a script hidden in a link, form or comment runs as if it were part of your site.
Read about it here - Running code
Someone could run their own code on the server and take the site over: add malware, send spam, steal data, or use it to attack others.
How: Part of the software treats something it was sent as instructions to follow, or keeps an uploaded file somewhere it can be run.
Read about it here - Missing checks
Someone could do things only an administrator should: change settings, see private data, or give themselves more rights.
How: Part of the software forgets to check who is asking before it does what was asked.
Read about it here
Every known flaw, newest first (5)
- October 2026MajorCross-site scriptingFixed in 2.13.1. No login needed.
- October 2026MajorCross-site scriptingFixed in 2.13.2. No login needed.
- September 2026MinorCross-site scriptingFixed in 2.13.1. Needs a login on the site (Subscriber+).
- April 2024MajorRunning codeFixed in 2.11.0. Needs a login on the site (Contributor+).
- April 2024AdvisoryMissing checksFixed in 2.13.0.
From the public lists of known flaws, checked daily. A flaw is listed once it is made public, often after a fix is out.
Be told the day a new one is found.
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