The plugin register. Used on 500,000+ sites
Meta Box
7known security flaws found in Meta Box
since February 2024
Safe from 5.15.3
Version 5.15.3 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
- 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 - Reading files
Someone could read files on the server they should never see, such as the settings file holding the database password, or delete files the site needs.
How: The software takes a file name from a request and does not check that it stays inside its own folder.
Read about it here - 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
Every known flaw, newest first (7)
- August 2026AdvisoryMissing checksFixed in 5.13.1.
- August 2026MinorMissing checksFixed in 5.15.3. Needs a login on the site.
- April 2026MinorReading filesFixed in 5.11.2. No login needed.
- March 2026MajorReading filesFixed in 5.11.2. Needs a login on the site (Contributor+).
- August 2024MajorMissing checksFixed in 5.9.11. Needs a login on the site.
- March 2024MinorMissing checksFixed in 5.9.4. Needs a login on the site.
- February 2024MinorCross-site scriptingFixed in 5.9.3. Needs a login on the site (Contributor+).
From the public lists of known flaws, checked daily. A flaw is listed once it is made public, often after a fix is out.
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