vulnerability
WordPress Plugin: newsletters-lite: CVE-2025-67911: Deserialization of Untrusted Data
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Dec 31, 2025 | Jan 15, 2026 | Jan 15, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Dec 31, 2025
Added
Jan 15, 2026
Modified
Jan 15, 2026
Description
The Newsletters plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.11 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Solution
newsletters-lite-plugin-cve-2025-67911
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