WordPress plugin
Gmail SMTP security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 1 known vulnerability is fixed in the latest release. If you run an older version, update to null or newer.
1Known vulnerabilities
- Critical0
- High0
- Medium1
- Low0
All Gmail SMTP vulnerabilities
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Gmail SMTP: common questions
Does Gmail SMTP have known vulnerabilities?
Yes. VulnCrest Radar lists 1 known vulnerability in Gmail SMTP: 1 medium. None are known to affect version null.
How do I check which version of Gmail SMTP I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Gmail SMTP vulnerability?
CVE-2026-57657, published Jun 26, 2026: Gmail SMTP <= 1.2.3.19 - Cross-Site Request Forgery. Severity: Medium (CVSS 4.3).
Is any Gmail SMTP vulnerability listed in CISA KEV?
No. None of the known Gmail SMTP vulnerabilities is currently listed in the CISA KEV catalog.