What is CVE-2018-20987?

CVE-2018-20987 is a critical-severity vulnerability in Tribulant Newsletters, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-08-22.

How severe is CVE-2018-20987?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-20987 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Tribulant Newsletters

CVE-2018-20987

The newsletters-lite plugin before 4.6.8.6 for WordPress has PHP object injection.

Vulnerability class: Insecure Deserialization

EPSS: 0.021 (79.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tribulant Newsletters
N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_MISC, Release Notes)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-20987?: CVE-2018-20987 is a critical-severity vulnerability in Tribulant Newsletters, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2019-08-22.
How severe is CVE-2018-20987?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-20987 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.