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CVE-2026-104797 – Authentication Bypass / Account Takeover – Advanced Form Integration WordPress Plu

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Summary

CVE-2026-104797 is an authentication bypass (CWE-287) in the Advanced Form Integration — Connect Forms to 300+ Apps plugin for WordPress. Unauthenticated attackers can change user passwords, including administrator passwords, which can lead to full account takeover. The vulnerability has a CVSS v3.1 base score of 8.1 (High).

Technical details

  • Root cause: the adfoin_ultimatememberac_send_data function resolves the target WordPress user from an attacker-supplied email address. It passes that data to Ultimate Member’s profile update function without authentication checks.
  • Trigger conditions: the attacker supplies the email address of a target user. The CVSS vector rates attack complexity as High, so some conditions beyond the attacker’s control must apply. The CVE record does not describe them.
  • Attack vector: network, with no privileges and no user interaction required.
  • Impact: an attacker can change the password of any user, including administrators. This can give them control of the affected WordPress site, with high impact on confidentiality, integrity and availability.

Affected software

  • Advanced Form Integration (vendor: nasirahmed) versions 2.9.0 and earlier.

Severity

  • CVSS v3.1 base score: 8.1 (High)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: upgrade Advanced Form Integration to version 2.10.0 or later.
  • After upgrading, review administrator and other privileged accounts for unexpected password changes or logins. Reset credentials if you find any.
  • If you cannot patch right away, deactivate the plugin until you can update it. This workaround is a general precaution and is not taken from the advisory.

References

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