What’s Vulnerable › Vulnerabilities

CVE-2026-18437: MailPress <= 1.5.0 - Missing Authorization to Unauthenticated Contact Updates

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-31 · updated 2026-08-12
• Weakness: CWE-862

Description

The MailerPress – Newsletter, email marketing & AI automation plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the `mailerpress/v1/contact` endpoint in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to update contact details.

Affected products

• MailerPress – Newsletter, email marketing & AI automation: through 1.5.0

References

• https://plugins.trac.wordpress.org/browser/mailerpress/trunk/src/Api/Contacts.php#L801
• https://plugins.trac.wordpress.org/browser/mailerpress/trunk/src/Api/Contacts.php#L847
• https://www.wordfence.com/threat-intel/vulnerabilities/id/159d031b-0362-4625-9d98-3908401c8ee8?source=cve

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