CVE-2026-12583 — Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field

CVE-2026-12583

Newsletters < 4.15 - Unauthenticated PHP Object Injection via Subscriber Custom Field PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
Unknown / Newsletters	affected 0 before 4.15

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/e4c44105-f43d-4dff-8487-7d8ae2691c4e/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.