bestwebsoft SMTP Plugin up to 1.1.9 on WordPress save_options unrestricted upload

Summaryinfo

A vulnerability labeled as critical has been found in bestwebsoft SMTP Plugin up to 1.1.9 on WordPress. The affected element is the function save_options. Executing a manipulation can lead to unrestricted upload. This vulnerability appears as CVE-2024-13908. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in bestwebsoft SMTP Plugin up to 1.1.9 on WordPress. This vulnerability affects the function save_options. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The SMTP by BestWebSoft plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_options' function in all versions up to, and including, 1.1.9. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

The weakness was presented by Hoang Phuc Vo. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2024-13908 since 02/25/2025. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/08/2025). The MITRE ATT&CK project declares the attack technique as T1608.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• bestwebsoft

Name

• SMTP Plugin

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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