What’s Vulnerable › Vulnerabilities

CVE-2026-19652: Divi Membership <= 2.2.0 - Unauthenticated Privilege Escalation via 'form_id' Parameter

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-02 · updated 2026-10-03
• Weakness: CWE-269

Description

The Divi Membership plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 2.2.0. This is due to the `dmem_form_submit_handler()` function determining the new user's role by iterating all WordPress roles and calling `password_verify()` against an attacker-controlled bcrypt hash supplied in the `form_id` POST parameter, with no validation or whitelist of allowed roles. This makes it possible for unauthenticated attackers to register a new account with the administrator role by submitting a locally computed bcrypt hash of `administrator` as `form_id`, and when `auto_login=on` is submitted, be immediately authenticated as that administrator in the same request, resulting in full site takeover. Exploitation requires a WordPress nonce, but that nonce is publicly emitted on any page rendering the Divi Membership registration form and is therefore obtainable by any unauthenticated visitor.

Affected products

• DiviEngine Divi Membership: through 2.2.0

References

• https://diviengine.com/divi-membership-changelog/
• https://diviengine.com/product/divi-membership/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/81d46c7a-dfe4-4991-99cc-66e5c6d3e3c8?source=cve

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