Medium 5.4Published Aug 31, 2026

CVE-2026-81278WordPress Post SMTP plugin 4.0.0-beta.1 - Settings Change vulnerability

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects WPExperts Post SMTP. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for WPExperts Post SMTP

Exploited in the last 30 days

Missing Authorization vulnerability in WPExperts Post SMTP allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Post SMTP: from 4.0.0 through beta.1.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Patchstack
NVD analysis: Deferred
Record last updated: Sep 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WPExperts Post SMTP wpexperts:post_smtp (from the name)	from 4.0.0 through beta.1; fixed at 4.0.1	CNA record

References

https://patchstack.com/database/wordpress/plugin/post-smtp/vulnerability/wordpress-post-smtp-plugin-4-0-0-beta-1-settings-change-vulnerability?_s_id=cvevdb-entry

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.