WordPress 1 vulnerability

Is the FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider plugin safe?

Below are the known, publicly disclosed vulnerabilities of the FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider (WordPress) component. If you use it on your site, check the version and update it before the flaw gets exploited.

Using the FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider plugin? Check for free whether your site is vulnerable through it, or have us update and secure it.
Check your site → Secure it with us

Known vulnerabilities

Wysoka · CVSS 7.2 CVE-2026-16636 August 6, 2026

FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider: cross-site scripting (XSS)

Cross-site scripting (XSS) w komponencie FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider. Ocena zagrożenia: Wysoka (CVSS 7.2). Zaktualizuj podatny komponent do najnowszej wersji lub tymczasowo go wyłącz.

Details and what to do → Source (NVD) ↗

How to check whether this affects you

  • Check the installed version of the FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider component in the admin panel.
  • Compare it with the fixed version noted in the details of the relevant vulnerability above.
  • If your version is older, update the component to the latest available.
  • If a fix has not been released yet, temporarily disable the vulnerable element and watch your logs.
How to secure WordPress → Scan your site → All current threats →
Do not guess, check

Is this plugin putting your site at risk?

We will run a free audit: we check versions, plugins and configuration, and tell you plainly whether you are safe.

Request a free audit →