BIT-AIRFLOW-2026-49267 Apache Airflow: No certificate validation on SMTP STARTTLS connections

Apache Airflow's EmailOperator and the underlying airflow.utils.email helpers established SMTP STARTTLS connections without verifying the remote certificate when the deployment used email smtpstarttls=True without email smtpssl. An attacker positioned between the worker and the configured SMTP...

PCPJack Hijacks 230 AWS, Google Cloud, and Azure Servers for Covert SMTP Relay Network

The threat actor known as PCPJack has hijacked cloud servers associated with Amazon Web Services AWS, Google Cloud, and Microsoft Azure to create a covert SMTP email relay network. "Compromised business servers across the U.S., Europe, and Asia were quietly converted into SMTP proxies, verified f...

D-Link Central WifiManager - Server-Side Request Forgery

D-Link Central WifiManager is susceptible to server-side request forgery. The MailConnect feature on D-Link Central WiFiManager CWM-100 1.03 r0098 devices is intended to check a connection to an SMTP server but actually allows outbound TCP to any port on any IP address, as demonstrated by an...

SMTP WP Plugin Directory Listing

The WordPress Easy WP SMTP Plugin has its log folder remotely accessible and its content available for access. id: CVE-2020-35234 info: name: SMTP WP Plugin Directory Listing author: PR3R00T severity: high description: The WordPress Easy WP SMTP Plugin has its log folder remotely accessible and i...

Post SMTP <= 3.6.0 - Email Log Disclosure

Post SMTP WordPress plugin = 3.6.0 contains an unauthorized data access vulnerability caused by missing capability check in construct function, letting unauthenticated attackers read arbitrary logged emails, exploit requires no authentication. id: CVE-2025-11833 info: name: Post SMTP = 3.6.0 -...

SMTP by BestWebSoft < 1.1.0 - Cross-Site Scripting

The bws-smtp plugin before 1.1.0 for WordPress has multiple XSS issues. id: CVE-2017-18518 info: name: SMTP by BestWebSoft 1.1.0 - Cross-Site Scripting author: luisfelipe146 severity: medium description: | The bws-smtp plugin before 1.1.0 for WordPress has multiple XSS issues. impact: |...

CVE-2026-3820 Supermicro BMC's SMTP service contains a command injection vulnerability

There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR. An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process...

CVE-2026-3820

There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR. An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process...

CVE-2026-3820 Supermicro BMC's SMTP service contains a command injection vulnerability

There is a vulnerability in the Supermicro BMC SMTP service at Supermicro AS-2115HS-TNR. An attacker may obtain administrator privileges and inject specially crafted characters into the SMTP service configuration. This may cause the underlying system to execute unintended commands during process...

CVE-2026-50205 Plaintext Log Credential Leakage

System log files output unencrypted SMTP server authentication passwords alongside sensitive employee corporate identification data...

ROOT-APP-MAVEN-CVE-2025-59419 CVE-2025-59419 in io.root.io.netty:netty-codec-smtp - Patched by Root

Root has patched CVE-2025-59419 in the io.root.io.netty:netty-codec-smtp package for Root:Maven. Multiple fixed versions available...

Gravity SMTP WordPress Plugin - Sensitive Information Exposure

Gravity SMTP WordPress plugin = 2.1.4 contains a sensitive information exposure caused by an unrestricted REST API endpoint at /wp-json/gravitysmtp/v1/tests/mock-data, letting unauthenticated attackers retrieve detailed system configuration data, exploit requires no authentication. id:...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : Exim vulnerabilities (USN-8382-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8382-1 advisory. Timo Longin discovered that Exim incorrectly handled certain SMTP messages in PIPELINING/CHUNKING configurations. A...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : nginx vulnerabilities (USN-8375-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8375-1 advisory. It was discovered that the nginx ngxmailsmtpmodule module incorrectly handled certain memory operations when doing SM...

USN-8382-1 exim4 vulnerabilities

Timo Longin discovered that Exim incorrectly handled certain SMTP messages in PIPELINING/CHUNKING configurations. A remote attacker could possibly use this issue to perform SMTP smuggling. This issue only affected Ubuntu 14.04 LTS. CVE-2023-51766 It was discovered that Exim incorrectly handled...

CVE-2026-7666

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

CVE-2026-7666 Potential unencrypted email transmission via STARTTLS in the SMTP backend

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

CVE-2026-7666 Potential unencrypted email transmission via STARTTLS in the SMTP backend

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

EUVD-2026-34087

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. django.core.mail.backends.smtp.EmailBackend in Django fails to prevent reuse of a partially-initialized connection after a failed STARTTLS handshake when failsilently=True, which allows on-path network attackers to read ema...

UBUNTU-CVE-2026-7666

Potential unencrypted email transmission via STARTTLS in the SMTP backend...