What it means for a small business
Gravity SMTP is a WordPress plugin. If your website uses it, the flaw is on your site whether or not anyone has noticed yet: attackers scan the whole internet for the plugins with published flaws, usually within days of a record like this one going public.
Most small-business sites run 15 to 40 plugins, and few owners know the list. You can check from WordPress itself (Plugins, then Installed Plugins), or let our free plugin check look it up by name.
How likely is an attack? The Exploit Prediction Scoring System, run by FIRST (the global association of security response teams), puts the odds of this one being exploited in the next 30 days at 74%, top 1% of all CVEs. That’s high: fix it ahead of everything else on the list. Scored October 28, 2026, updated daily.
Check your own setup
- Is Gravity SMTP safe? Every recorded flaw in it, the version that fixes each, and whether it’s still maintained.
- Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
- Server check: what your web server says about itself, and whether that version has known flaws.
Sources
Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.
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