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.
CVE-2025-4857 is a high severity with CVSS 7.2 Local File Inclusion issue affecting the Plugin Newsletters. It affects Versions up to 4.9.9.9 and is fixed in 4.10.
CVE-2025-4857 is tracked for the Plugin Newsletters as high severity with CVSS 7.2. The affected range is Versions up to 4.9.9.9. Update Newsletters to 4.10 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
newsletters-lite
View on wordpress.org
|
| CVE | CVE-2025-4857 |
| Patched Versions |
4.10
|
| Affected Versions |
Versions up to 4.9.9.9
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Newsletters <= 4.6.8.5 - Object Injection
Newsletters <= 4.9.5 - Authenticated (Admin+) Arbitrary File Upload
Newsletters <= 4.9.9.2 - Authenticated Privilege Escalation
Newsletters <= 4.6.18 - Directory Traversal
Newsletters <= 4.11 - Unauthenticated PHP Object Injection
Newsletters <= 4.10 - Unauthenticated Local File Inclusion
Newsletters <= 4.9.9.7 - Unauthenticated Stored Cross-Site Scripting
Newsletter Lite <= 4.9.2 - Authenticated (Admin+) Command Injection
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