VULNERABILITY INTELLIGENCE
CVE-2026-16267
CVSS score8.1 HIGH
EPSS probability0.45%
CISA KEVNot currently listed
Published2026-08-08
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
The Newsletters WordPress plugin before 4.16 does not restrict the classes allowed when unserialising a value taken from a public form submission, allowing unauthenticated attackers to inject arbitrary PHP objects.
Weakness classification
- CWE-502: Deserialization of Untrusted Data