Read the docs
TI-2026-56117 Aliases CVE-2026-81278GHSA-jq3g-93gg-57x6

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

Priority LOW 24CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WPExpertsPost SMTP4.0.0 – beta.1—No fix listedCNA
  • Post SMTP VendorWPExperts Affected 4.0.0 – beta.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81278
  2. 2026-10-03 Alias added: GHSA-jq3g-93gg-57x6

References

Other 1

  • TI-2023-06280 Authorization bypass in saadiqbal Post SMTP – Complete Email Deliverability and SMTP… CVSS 3.1CRITICAL 9.8
  • TI-2023-03363 Change WP Admin < 1.1.4 - Secret Login Page Disclosure CVSS 3.1HIGH 7.5
  • TI-2023-02978 POST SMTP Mailer < 2.5.7 - Account Takeover via CSRF CVSS 3.1HIGH 8.8
  • TI-2023-06067 Post SMTP < 2.8.7 - Admin+ SQL Injection CVSS 3.1HIGH 7.2
  • TI-2022-02171 Post SMTP < 2.1.7 - Admin+ Blind SSRF CVSS 3.1HIGH 7.2
  • TI-2024-04426 WP Secure Maintenance < 1.7 - Admin+ Stored XSS CVSS 3.1MEDIUM 5.9
See all 60 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences