CVE-2026-48838: WordPress Post SMTP plugin <= 3.6.2 - Cross Site Scripting (XSS) vulnerability
Published Jun 15, 2026
·Updated
Unauthenticated Cross Site Scripting (XSS) in Post SMTP <= 3.6.2 versions.
Affected Software
1 affected component
Post SMTP Post SMTP (WordPress plugin)<=3.6.2
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress Post SMTP Pluginto a version that resolves this vulnerability.Fixed in 3.6.3
Event History
Jun 15, 2026
CVE Published
via MITRE·08:18 PM
Data Sourced
via MITRE·08:18 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-48838?
CVE-2026-48838 has a severity rating of high at 7.1.
2
What type of vulnerability is CVE-2026-48838?
CVE-2026-48838 is an unauthenticated Cross Site Scripting (XSS) vulnerability.
3
Which versions are affected by CVE-2026-48838?
CVE-2026-48838 affects all versions of the Post SMTP plugin up to and including 3.6.2.
4
How do I fix CVE-2026-48838?
To fix CVE-2026-48838, update the Post SMTP plugin to a version later than 3.6.2.
5
What consequences can result from CVE-2026-48838?
CVE-2026-48838 could allow attackers to execute arbitrary JavaScript code in the context of a user's session.