CVE-2026-12583
Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field
- State
- Published
- Severity
- 8.1 High
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jun 18, 2026
Description
The Newsletters WordPress plugin before 4.15 does not prevent deserialization of untrusted input that is stored through a public form, allowing unauthenticated attackers to inject a PHP object and, via a property-oriented gadget chain bundled with the Newsletters WordPress plugin before 4.15, write arbitrary files and execute code on the server.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
NewslettersUnknown |
|
References
- https://wpscan.com/vulnerability/e4c44105-f43d-4dff-8487-7d8ae2691c4e/exploitvdb-entrytechnical-description
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