The plugin register. Used on 500,000+ sites
MailPoet
4known security flaws found in MailPoet
since April 2019
Safe from 5.33.1
Version 5.33.1 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 - Forged requests
Someone could get a signed in administrator to change something without knowing, such as adding a new admin or changing settings, just by visiting a page.
How: The software does not check that a change came from its own pages, so another site can quietly send one through the administrator's browser.
Read about it here
Every known flaw, newest first (4)
- July 2026AdvisoryForged requestsFixed in 5.33.1.
- March 2025MinorCross-site scriptingFixed in 5.5.2. Needs a login on the site.
- October 2024MinorCross-site scriptingFixed in 5.3.2. No login needed.
- April 2019MinorCross-site scriptingFixed in 3.23.2. No login needed.
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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