High severity8.1NVD Advisory· Published Jul 14, 2026· Updated Jul 14, 2026
CVE-2026-12583
CVE-2026-12583
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.
Affected products
1- Range: <4.15
Patches
Vulnerability mechanics
References
1News mentions
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