CVE-2025-4857 Newsletters <= 4.9.9.9 - Authenticated (Administrator+) Local File Inclusion
Authenticated administrators can exploit a local file inclusion vulnerability in the Newsletters plugin to execute arbitrary PHP code and read sensitive data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-4857?
CVE-2025-4857 is a high-severity path traversal vulnerability in contrid Newsletters, published on 31 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2025-4857?
It affects 1 product.
Products include Tribulant Newsletters.
How do I fix CVE-2025-4857?
No fix has been published for CVE-2025-4857 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-4857 being exploited?
There is no known exploitation of CVE-2025-4857 in the wild and no public exploit code.
Other vulnerabilities in contrid Newsletters
- CVE-2018-20987 Deserialization in n/a
- CVE-2024-8247 Newsletters <= 4.9.9.2 - Authenticated Privilege Escalation
- CVE-2019-14788 Path traversal in n/a
- CVE-2023-4797 Newsletter Lite < 4.9.3 - Admin+ Command Injection
- CVE-2024-35718 WordPress Newsletters plugin <= 4.9.5 - Reflected Cross Site Scripting (XSS) vulnerability
Sources
Also known as GHSA-2qq8-vcw7-37m7.