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TI-2023-06280 Aliases CVE-2023-6875GHSA-9cw8-p5p2-35pf

Authorization bypass in saadiqbal Post SMTP – Complete Email Deliverability and SMTP…

Priority CRITICAL 92CWE-639Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to unauthorized access of data and modification of data due to a type juggling issue on the connect-app REST endpoint in all versions up to, and including, 2.8.7. This makes it possible for unauthenticated attackers to reset the API key used to authenticate to the mailer and view logs, including password reset emails, allowing site takeover. CVE-2023-52233 appears to be a duplicate of this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.90339 99th 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
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
saadiqbalPost SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile Appup to 2.8.7—No fix listedCNA
  • Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App Vendorsaadiqbal Affected up to 2.8.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:*up to 2.8.7VulnerableWPExperts
  • cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:* Versions up to 2.8.7 Vulnerable ·WPExperts

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-6875
  2. 2026-10-03 Alias added: GHSA-9cw8-p5p2-35pf

References

Advisory 2

Other 2

  • TI-2025-10849 Missing authorization in saadiqbal Post SMTP – Complete Email Deliverability and SMTP… CVSS 3.1CRITICAL 9.8
  • TI-2024-29006 WordPress myCred plugin <= 2.7.2 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2025-36263 WordPress All In One Login plugin <= 2.0.8 - Bypass Vulnerability vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2026-05814 WPFormify <= 1.1.1 - Missing Authorization CVSS 3.1HIGH 8.2
  • TI-2025-42518 WordPress New User Approve plugin <= 3.2.0 - Broken Access Control vulnerability CVSS 3.1HIGH 8.6
  • TI-2024-35074 WordPress User Management plugin <= 1.1 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.9
See all 77 →

Sources

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