CVE-2026-81278— WordPress Post SMTP plugin 4.0.0-beta.1 - Settings Change vulnerability
Quick assessment
Affected
WPExperts Post SMTP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WPExperts Post SMTP 插件存在“缺失授权”漏洞，可能导致因访问控制安全级别配置不当而被利用。 此问题影响 Post SMTP 插件 4.0.0 至 beta.1 版本。
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I. Basic Information for CVE-2026-81278
Vulnerability Information
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Vulnerability Title
WordPress Post SMTP plugin 4.0.0-beta.1 - Settings Change vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-81278
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Other References for CVE-2026-81278 (1)
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V. Comments for CVE-2026-81278
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