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CVE-2026-16267

HIGH 8.1 CVSS 3.1
Published
August 8, 2026
Last modified
August 26, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-502
CVSS vector
CVSS: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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Newsletters — Before 4.16

References

  • wpscan.com https://wpscan.com/vulnerability/b51c11d6-5bfa-4b2c-b348-cda19889deee/
  • nvd.nist.gov Official NVD record