CVE-2026-2559mediumCWE-862

CVE-2026-2559: falha de média gravidade em saadiqbal Post SMTP – Complete Email…

Post SMTP <= 3.8.0 - Missing Authorization to Authenticated (Subscriber+) Office 365 OAuth Configuration Overwrite

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 5.3epss 0.2%
The Post SMTP plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `handle_office365_oauth_redirect()` function in all versions up to, and including, 3.8.0. This is due to the function being hooked to `admin_init` without any `current_user_can()` check or nonce verification. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the site's Office 365 OAuth mail configuration (access token, refresh token, and user email) via a crafted URL. The configuration option is used during wizard setup of Microsoft365 SMTP, only available in the Pro option of the plugin. This could cause an Administrator to believe an attacker-controlled Azure app is their own, and lead them to connect the plugin to the attacker's account during configuration after upgrading to Pro.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Produtos afetados
saadiqbal · Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
CVEs relacionadas — saadiqbal Post SMTP – Complete Email…

No mesmo produto, das mais perigosas para as menos.

CVE-2023-6875CRITICALPOST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.8.7 - Authorization Bypass via type connect-app APIEPSS 90.3%CVE-2025-11833CRITICALPost SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.0 - Missing Authorization to Account Takeover via Unauthenticated Email Log DisclosureEPSS 61.5%CVE-2023-7027HIGHPOST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.8.7 - Unauthenticated Stored Cross-Site Scripting via deviceEPSS 0.9%CVE-2021-4422MEDIUMPOST SMTP Mailer <= 2.0.20 - Cross-Site Request Forgery BypassEPSS 0.5%CVE-2023-3082HIGHPost SMTP <= 2.5.7 - Unauthenticated Stored Cross-Site Scripting via EmailEPSS 0.5%CVE-2024-5207HIGHPOST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress <= 2.9.3 - Authenticated (Administrator+) SQL InjectionEPSS 0.5%