Is phpmailer/phpmailer 6.6 vulnerable?
Composer · 6 releases from 6.6.0 to 6.6.5 · latest phpmailer/phpmailer is 7.1.1 · checked 1 Nov 2026
No known advisories in the last release
No. No phpmailer/phpmailer 6.6.x release has a known security advisory.
Which of your client projects are still on phpmailer/phpmailer 6.6?
NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact phpmailer/phpmailer version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.
Other phpmailer/phpmailer versions
- phpmailer/phpmailer 6.9
- phpmailer/phpmailer 6.8
- phpmailer/phpmailer 6.7
- phpmailer/phpmailer 6.5
- phpmailer/phpmailer 6.4
- phpmailer/phpmailer 6.3
- phpmailer/phpmailer 7.1
- phpmailer/phpmailer 7.0
- phpmailer/phpmailer 6.12
- phpmailer/phpmailer 6.11
- phpmailer/phpmailer 6.10
- phpmailer/phpmailer 5.2
- All phpmailer/phpmailer advisories
Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the Composer registry. Refreshed daily.