Deserialization in F1logic Newsletter Manager

CVE-2020-36727

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.016 (73.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-36727?
CVE-2020-36727 is a critical-severity vulnerability in F1logic Newsletter Manager, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2023-06-07.
How severe is CVE-2020-36727?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-36727 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.