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FluentSMTP · Security record

Is FluentSMTP safe?

No known vulnerability affects the current version (2.4.5). 6 issues were found in earlier versions and fixed, the latest disclosed on Jan 24, 2025.

Checked 5 days ago against the WPVulnerability database, for version 2.4.5.

How it’s looked after

Last release
Nov 4, 2026 (4 days ago)
Releases in the last year
6
Tested up to
WordPress 7.1.4
Support resolved
21 of 23 threads in two months
Active installs
700K+

6 known vulnerabilities

  • 1 critical
  • 1 high
  • 4 medium

None affects the current version.

Disclosed each year

  • 20211
  • 20232
  • 20241
  • 20252

Every known vulnerability in FluentSMTP

Newest first, with any that affect the current version at the top.

Questions about FluentSMTP’s security

Is FluentSMTP safe to use?

No known vulnerability affects its current version. Earlier versions had issues that are now fixed, so keep FluentSMTP updated: most attacks target sites that haven’t updated.

Does FluentSMTP have known security vulnerabilities?

None that affect the current version. WPVulnerability’s database lists 6 older issues, fixed in earlier versions, so keep FluentSMTP up to date.

Is FluentSMTP still maintained?

Yes. Its last release was 4 days ago. Its authors resolved 21 of the 23 support threads opened in the last two months.

Is FluentSMTP compatible with the latest WordPress?

Yes. It’s tested up to WordPress 7.1.4, the current version.

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Vulnerability data from WPVulnerability (CC0), which gathers records from CVE, Wordfence, Patchstack and WPScan. A clean record isn’t a guarantee: keep every plugin updated.