Vulnerability · Published Jun 15, 2026 · Assigned by Patchstack

CVE-2026-48838WordPress Post SMTP plugin <= 3.6.2 - Cross Site Scripting (XSS) vulnerability

High 7.1

In plain English

A high-severity cross-site scripting in Post SMTP from WPExperts. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.2%top 85.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Unauthenticated Cross Site Scripting (XSS) in Post SMTP <= 3.6.2 versions.

Affected products (as reported)

Vendor	Product	Versions
WPExperts	Post SMTP	n/a – through 3.6.2

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

References

https://patchstack.com/database/wordpress/plugin/post-smtp/vulnerability/wordpress-post-smtp-plugin-3-6-2-cross-site-scripting-xss-vulnerability?_s_id=cve vdb-entry