PT-2026-36568 · WordPress · Wp Mail Gateway

Nabil Irawan · Published 2026-05-02 · Updated 2026-05-02 · CVE-2026-6963

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions WP Mail Gateway versions prior to 1.9

Description The plugin is subject to unauthorized access because of a missing capability check on the 'wmg save provider config' AJAX action. Authenticated attackers with Subscriber-level access or higher can update SMTP settings and redirect mail. This can lead to privilege escalation by triggering a password reset email to gain access to an administrator account.

Recommendations Update the plugin to a version later than 1.8. As a temporary workaround, restrict access to the 'wmg save provider config' AJAX action to authorized users only.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-6963

Affected Products

Wp Mail Gateway

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-6963 · Security Note
• https://plugins.trac.wordpress.org/browser/wp-mail-gateway/trunk/src/Bootstrap.php#L47 · Note
• https://twitter.com/KaitanSecurity/status/2050447719328616657 · Twitter Post
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3515205%40wp-mail-gateway&new=3515205%40wp-mail-gateway&sfp_email=&sfph_mail= · Note
• https://plugins.trac.wordpress.org/browser/wp-mail-gateway/trunk/src/Functions.php#L111 · Note
• https://plugins.trac.wordpress.org/browser/wp-mail-gateway/tags/1.8/src/Bootstrap.php#L47 · Note
• https://plugins.trac.wordpress.org/browser/wp-mail-gateway/tags/1.8/src/Functions.php#L111 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/c7caf1f4-a8dd-4016-91eb-2adbeed5290a?source=cve · Note