What’s Vulnerable › Vulnerabilities

CVE-2025-4857: Newsletters <= 4.9.9.9 - Authenticated (Administrator+) Local File Inclusion

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-31 · updated 2026-06-17
• Weakness: CWE-22

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.

Affected products

• contrid Newsletters: before 4.10 — fixed in 4.10

How to fix

Upgrade to a fixed version: contrid Newsletters 4.10. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/newsletters-lite/trunk/wp-mailinglist.php#L1584
• https://plugins.trac.wordpress.org/changeset/3303758/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/33c0838a-5f86-4368-8bf9-da0582acbabf?source=cve

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