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CVE-2020-36727

CRITICAL 9.8 CVSS 3.1
Published
June 7, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-502
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Newsletter Manager plugin for WordPress is vulnerable to insecure deserialization in versions up to, and including, 1.5.1. This is due to unsanitized input from the 'customFieldsDetails' parameter being passed through a deserialization function. This potentially makes it possible for unauthenticated attackers to inject a serialized PHP object.

Affected products and versions

  • f1logic Newsletter Manager — Up to and including 1.5.1
  • xyzscripts newsletter_manager — Up to and including 1.5.1

References

  • blog.nintechnet.com https://blog.nintechnet.com/insecure-deserialization-vulnerability-in-wordpress-newsletter-manager-plugin-unpatched/ Exploit
  • wpscan.com https://wpscan.com/vulnerability/b82124b1-e5e1-4f1e-9513-90474fd3f066 Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/dcfd8c4d-d48b-468d-a7d5-1ec05b068f79?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record