The plugin register. Used on 400,000+ sites
Custom Fonts
2known security flaws found in Custom Fonts
since May 2024
Safe from 2.1.17
Version 2.1.17 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 - 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 (2)
- January 2026MinorMissing checksFixed in 2.1.17. No login needed.
- May 2024MinorCross-site scriptingFixed in 2.1.5. Needs a login on the site (Author+).
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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