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Vulnerability database / Plugins / post-smtp

Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App

WordPress plugin · post-smtp · WordPress.org ↗
Latest v4.0.1 Last release Aug 25, 2026 Tested up to WP 7.0.5 300,000+ active installs
2
Critical
10
High
36
Known total
0
Unfixed
Running Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App on your site? WP Alerts checks your installed version against every entry below and emails you only when one affects you. Free, no tracking.
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SeverityVulnerabilityAffectedFixed inCVEPublished
CRITICAL
CVSS 9.8
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.1
WPVulnerability
 < 3.6.1 v3.6.1 CVE-2025-11833 Oct 31, 2025
CRITICAL
CVSS 9.8
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.8
WPVulnerability
 < 2.8.8 v2.8.8 CVE-2023-6875 Jan 10, 2024
HIGH
CVSS 7.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.3
WPVulnerability
 < 3.6.3 v3.6.3 CVE-2026-48838 Apr 30, 2026
HIGH
CVSS 8.8
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.3.0
WPVulnerability
 < 3.3.0 v3.3.0 CVE-2025-24000 Jul 21, 2025
HIGH
CVSS 7.6
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.9.10
WPVulnerability
 < 2.9.10 v2.9.10 CVE-2024-52436 Nov 15, 2024
HIGH
CVSS 7.2
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.9.4
WPVulnerability
 < 2.9.4 v2.9.4 CVE-2024-5207 May 22, 2024
HIGH
CVSS 7.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.7
WPVulnerability
 < 2.8.7 v2.8.7 CVE-2024-29128 Mar 19, 2024
HIGH
CVSS 8.6
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.7
WPVulnerability
 < 2.8.7 v2.8.7 CVE-2023-52233 Jan 5, 2024
HIGH
CVSS 7.2
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.7
WPVulnerability · PoC available
 < 2.8.7 v2.8.7 CVE-2023-6620 Dec 21, 2023
HIGH
CVSS 7.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.5.8
WPVulnerability
 < 2.5.8 v2.5.8 CVE-2023-33999 Jul 18, 2023
HIGH
CVSS 8.8
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.5.7
WPVulnerability · PoC available
 < 2.5.7 v2.5.7 CVE-2023-3179 Jun 26, 2023
HIGH
CVSS 7.2
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.1.7
WPVulnerability · PoC available
 < 2.1.7 v2.1.7 CVE-2022-2352 Sep 5, 2022
MEDIUM
CVSS 5.4
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 4.0.1
WPVulnerability
 < 4.0.1 v4.0.1 CVE-2026-81278 May 28, 2026
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.1.0
WPVulnerability
 < 3.1.0 v3.1.0 CVE-2024-13362 Apr 30, 2026
MEDIUM
CVSS 5.3
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.2
WPVulnerability
 < 3.6.2 v3.6.2 CVE-2025-67563 Dec 9, 2025
MEDIUM
CVSS 5.4
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.2
WPVulnerability
 < 3.6.2 v3.6.2 CVE-2025-12887 Dec 3, 2025
MEDIUM
CVSS 4.3
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.4.2
WPVulnerability
 < 3.4.2 v3.4.2 CVE-2025-9219 Sep 2, 2025
MEDIUM
CVSS 4.9
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.1.3
WPVulnerability
 < 3.1.3 v3.1.3 CVE-2024-13844 Mar 7, 2025
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.1.0
WPVulnerability
 < 3.1.0 v3.1.0 CVE-2025-0521 Feb 17, 2025
MEDIUM
CVSS 4.3
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.9.12
WPVulnerability
 < 2.9.12 v2.9.12 CVE-2025-22800 Jan 7, 2025
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.7
WPVulnerability · PoC available
 < 2.8.7 v2.8.7 CVE-2023-6621 Jan 3, 2024
MEDIUM
CVSS 5.4
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.8
WPVulnerability
 < 2.8.8 v2.8.8 CVE-2023-7027 Jan 2, 2024
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.8.7
WPVulnerability
 < 2.8.7 v2.8.7 CVE-2023-6629 Jan 2, 2024
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.7.1
WPVulnerability
 < 2.7.1 v2.7.1 CVE-2023-5958 Nov 6, 2023
MEDIUM
CVSS 6.1
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.5.8
WPVulnerability
 < 2.5.8 v2.5.8 CVE-2023-3082 Jul 11, 2023
MEDIUM
CVSS 4.3
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.5.7
WPVulnerability · PoC available
 < 2.5.7 v2.5.7 CVE-2023-3178 Jun 26, 2023
MEDIUM
CVSS 4.8
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.1.4
WPVulnerability
 < 2.1.4 v2.1.4 CVE-2022-2351 Aug 18, 2022
MEDIUM
CVSS 4.3
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.0.21
WPVulnerability
 < 2.0.21 v2.0.21 CVE-2021-4422 Mar 1, 2021
NONE
CVSS 0.0
 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.0.21
WPVulnerability
 < 2.0.21 v2.0.21 CVE-2021-4342 Jun 7, 2023
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.9.0
WPVulnerability
 < 3.9.0 v3.9.0 CVE-2026-2559 Mar 17, 2026
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.9.0
WPVulnerability
 < 3.9.0 v3.9.0 CVE-2026-3090 Mar 17, 2026
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.6.1
WPVulnerability
 < 2.6.1 v2.6.1 — Oct 4, 2023
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.6.1
WPVulnerability
 < 2.6.1 v2.6.1 — Oct 3, 2023
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.0.21
WPVulnerability
 < 2.0.21 v2.0.21 — Feb 11, 2021
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.6.1
WPVulnerability
 < 2.6.1 v2.6.1 — —
UNKNOWN Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 2.0.21
WPVulnerability
 < 2.0.21 v2.0.21 — —

Data aggregated from WPVulnerability, NVD/NIST, ENISA EUVD, CVE.org and WordPress.org. Provided as-is; verify with the plugin author before acting. Disclaimer.