CVE-2026-6235: CWE-862 Missing Authorization in sendmachine Sendmachine for WordPress
The Sendmachine for WordPress plugin for WordPress is vulnerable to authorization bypass via the 'manage_admin_requests' function in all versions up to, and including, 1.0.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the plugin's SMTP configuration, which can be leveraged to intercept all outbound emails from the site (including password reset emails).
AI Analysis
Technical Summary
CVE-2026-6235 is a critical authorization bypass vulnerability in the Sendmachine for WordPress plugin (up to version 1.0.20). The issue arises because the 'manage_admin_requests' function does not properly verify user authorization before allowing changes to the SMTP configuration. This enables unauthenticated attackers to modify SMTP settings, which can be exploited to intercept all outbound emails from the affected WordPress site, including password reset emails. The vulnerability is identified as CWE-862 and has a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
An attacker exploiting this vulnerability can overwrite SMTP configuration without authentication, allowing interception of all outbound emails from the WordPress site. This includes sensitive communications such as password reset emails, which could lead to account takeover or further compromise. The vulnerability impacts confidentiality, integrity, and availability of the affected system's email functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the WordPress installation and consider disabling or removing the Sendmachine plugin if possible to prevent exploitation.
CVE-2026-6235: CWE-862 Missing Authorization in sendmachine Sendmachine for WordPress
Description
The Sendmachine for WordPress plugin for WordPress is vulnerable to authorization bypass via the 'manage_admin_requests' function in all versions up to, and including, 1.0.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to overwrite the plugin's SMTP configuration, which can be leveraged to intercept all outbound emails from the site (including password reset emails).
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6235 is a critical authorization bypass vulnerability in the Sendmachine for WordPress plugin (up to version 1.0.20). The issue arises because the 'manage_admin_requests' function does not properly verify user authorization before allowing changes to the SMTP configuration. This enables unauthenticated attackers to modify SMTP settings, which can be exploited to intercept all outbound emails from the affected WordPress site, including password reset emails. The vulnerability is identified as CWE-862 and has a CVSS 3.1 base score of 9.8, indicating high impact on confidentiality, integrity, and availability. No patch or official remediation level has been published yet.
Potential Impact
An attacker exploiting this vulnerability can overwrite SMTP configuration without authentication, allowing interception of all outbound emails from the WordPress site. This includes sensitive communications such as password reset emails, which could lead to account takeover or further compromise. The vulnerability impacts confidentiality, integrity, and availability of the affected system's email functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the WordPress installation and consider disabling or removing the Sendmachine plugin if possible to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-13T16:12:01.215Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e8877219fe3cd2cd8093d8
Added to database: 4/22/2026, 8:31:46 AM
Last enriched: 4/29/2026, 11:04:09 AM
Last updated: 6/6/2026, 5:40:23 PM
Views: 105
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