Post SMTP <= 2.9.11 - Missing Authorization via regenerate_qrcode()

4.3
Missing Authorization
CVE CVE-2025-22800
CVSS 4.3 (Medium)
Publicly Published January 7, 2025
Last Updated January 14, 2025
Researcher Rafie Muhammad - Awesome Motive, Inc.

Description

The Post SMTP plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the regenerate_qrcode() function in versions up to, and including, 2.9.11. This makes it possible for authenticated attackers, with subscriber-level access and above, to generate QR codes.

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

Software Type Plugin
Software Slug post-smtp (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.9.12, or a newer patched version
Affected Version
  • <= 2.9.11
Patched Version
  • 2.9.12

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

# Title CVE ID CVSS Researchers Date
1 Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App <= 3.6.2 - Unauthenticated Stored Cross-Site Scripting CVE-2026-48838 7.2 Drew Webber (mcdruid) May 28, 2026
2 Freemius <= 2.10.1 - Reflected DOM-Based Cross-Site Scripting via url Parameter CVE-2024-13362 6.1 Asaf Mozes April 30, 2026
3 Post SMTP <= 3.8.0 - Unauthenticated Stored Cross-Site Scripting via 'event_type' CVE-2026-3090 7.2 h0xilo March 17, 2026
4 Post SMTP <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Office 365 OAuth Configuration Overwrite CVE-2026-2559 5.3 Michael Iden (Mickhat) March 17, 2026
5 Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.1 - Missing Authorization to Authenticated (Subscriber+) OAuth Token Update CVE-2025-12887 5.4 type5afe December 3, 2025
6 Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.0 - Missing Authorization to Account Takeover via Unauthenticated Email Log Disclosure CVE-2025-11833 9.8 netranger October 31, 2025
7 Post SMTP <= 3.4.1 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Option Update CVE-2025-9219 4.3 Matteo Leonelli, David D. September 2, 2025
8 Post SMTP <= 3.2.0 - Missing Authorization to Authenticated (Subscriber+) Account Takeover via Email Log Exposure CVE-2025-24000 8.8 Denver Jackson July 21, 2025
9 Post SMTP <= 3.1.2 - Authenticated (Administrator+) SQL Injection via columns Parameter CVE-2024-13844 4.9 Nhien Pham (nhienit) March 7, 2025
10 Post SMTP <= 3.0.2 - Unauthenticated Stored Cross-Site Scripting CVE-2025-0521 7.2 zer0gh0st February 17, 2025

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