CVE-2025-59943

描述

### Summary phpMyFAQ does not enforce uniqueness of email addresses during user registration. This allows multiple distinct accounts to be created with the same email. Because email is often used as an identifier for password resets, notifications, and administrative actions, this flaw can cause account ambiguity and, in certain configurations, may lead to privilege escalation or account takeover. ### Details An account management logic flaw in phpMyFAQ allows attackers to register multiple accounts under the same email address. If email is used for password reset or administrative flows, this may result in account takeover, loss of accountability, and abuse of business logic. ### PoC 1.Register a user with email test@example.com 2.Register another user with the same email. 3.Both accounts appear in /admin/?action=user&user_action=listallusers. <img width="1150" height="628" alt="image" src="https://github.com/user-attachments/assets/8c19f01a-e897-4ca7-b3f8-fcf83e6ff952" /> ### Impact -Data integrity loss: Multiple accounts mapped to one email break auditability. -Password reset ambiguity: If reset flow relies on email only, attackers can target or take over accounts. -Privilege escalation: If one account with the same email has admin privileges, an attacker controlling the email may escalate. -Spam / DoS: Attackers can mass-register accounts with a single email to pollute the system. This is a business logic / authentication vulnerability. Impacted users are anyone relying on phpMyFAQ’s account system where email is assumed to be unique.

如何修補 CVE-2025-59943

要修補 CVE-2025-59943,請將受影響套件升級到下列已修補版本。

• —升級至 4.0.13 或更新版本

CVE-2025-59943 正在被利用嗎?

低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 4.0.7, < 4.0.13