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CVE-2026-81278

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

5.4 Medium

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
Low

Exploit likelihood

0.29%Up 0.1 points since Sep 1, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.4

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

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.

Record
CVE-2026-81278
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-68803 5.4

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.

Record
EUVD-2026-68803
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-jq3g-93gg-57x6 5.4

Missing Authorization vulnerability in WPExperts Post SMTP allows Exploiting Incorrectly...

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.

Record
GHSA-jq3g-93gg-57x6
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-862
Updated
2026-11-02
NVD 5.4

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.

Record
CVE-2026-81278
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-862
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, products, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-81278 is a medium vulnerability (CVSS 5.4) in Saad Iqbal Post Smtp, published August 31, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.

References

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