PT-2026-57966 · WordPress · Newsletters
CVE-2026-12583
·
Published
2026-07-14
·
Updated
2026-07-14
CVSS v3.1
8.1
High
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Newsletters WordPress plugin versions prior to 4.15
Description
An issue exists where the software fails to prevent the deserialization of untrusted input submitted through a public form. This allows unauthenticated attackers to inject a PHP object and utilize a property-oriented gadget chain—a sequence of existing code fragments used to achieve an unintended goal—to write arbitrary files and execute code on the server.
Recommendations
Update Newsletters WordPress plugin to version 4.15 or later.
Exploit
Fix
Deserialization of Untrusted Data
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Weakness Enumeration
Related Identifiers
Affected Products
Newsletters