Newsletters Plugin up to 4.9.9.9 on WordPress File file inclusion

Summaryinfo

A vulnerability was found in Newsletters Plugin up to 4.9.9.9 on WordPress. It has been rated as problematic. This impacts an unknown function. Performing a manipulation of the argument File results in file inclusion. This vulnerability is reported as CVE-2025-4857. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Newsletters Plugin up to 4.9.9.9 on WordPress. This affects an unknown function. The manipulation of the argument file with an unknown input leads to a file inclusion vulnerability. CWE is classifying the issue as CWE-73. The product allows user input to control or influence paths or file names that are used in filesystem operations. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Newsletters plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 4.9.9.9 via the 'file' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2025-4857 since 05/16/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/03/2025).

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Newsletters Plugin

Version

• 4.9.9.0
• 4.9.9.1
• 4.9.9.2
• 4.9.9.3
• 4.9.9.4
• 4.9.9.5
• 4.9.9.6
• 4.9.9.7
• 4.9.9.8
• 4.9.9.9

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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