WP Mail SMTP <= 4.0.1 - Authenticated (Admin+) SMTP Password Exposure
Strategic Overview
- Status
- Patched in 4.1.0
- Affected Version
<= 4.0.1- CVSS
- 2.7Low
- Weakness type
- CWE-257 · Storing Passwords in a Recoverable Format
- CVE
CVE-2024-6694
At a glance
CVE-2024-6694 is a low-severity Storing Passwords in a Recoverable Format vulnerability in the WP Mail SMTP by WPForms WordPress plugin, affecting versions <= 4.0.1. It carries a CVSS score of 2.7 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 4.1.0; sites on affected versions should update now. Disclosed July 2024, reported by Guus Verbeek.
Vulnerability Overview
The WP Mail SMTP plugin for WordPress is vulnerable to information exposure in all versions up to, and including, 4.0.1. This is due to plugin providing the SMTP password in the SMTP Password field when viewing the settings. This makes it possible for authenticated attackers, with administrative-level access and above, to view the SMTP password for the supplied server. Although this would not be useful for attackers in most cases, if an administrator account becomes compromised this could be useful information to an attacker in a limited environment.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-257: Storing Passwords in a Recoverable Format
The storage of passwords in a recoverable format makes them subject to password reuse attacks by malicious users. In fact, it should be noted that recoverable encrypted passwords provide no significant benefit over plaintext passwords since they are subject not only to reuse by malicious attackers but also by malicious insiders. If a system administrator can recover a password directly, or use a brute force search on the available information, the administrator can use the password on other accounts.
Remediation
Update to version 4.1.0, or a newer patched version
How does WordSec protect against this?
The fix is the thing that ends this: WP Mail SMTP by WPForms 4.1.0 closes this, and updating the plugin is the step that ends it.
- Alerts
External References
Related records
Other vulnerabilities in WP Mail SMTP by WPForms – The Most Popular SMTP and Email Log Plugin
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