What is CVE-2019-12498?

CVE-2019-12498 is a critical-severity vulnerability in 3cx Live Chat, classified under Missing Authorization. CVSS score: 9.8/10. Published 2020-03-20.

How severe is CVE-2019-12498?

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

Is CVE-2019-12498 known to be exploited?

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

Auth bypass in 3cx Live Chat

CVE-2019-12498

The WP Live Chat Support plugin before 8.0.33 for WordPress accepts certain REST API calls without invoking the wplc_api_permission_check protection mechanism.

Vulnerability class: Broken Access Control

Published 2020-03-20 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.020 (79.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

3cx Live Chat

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

20142995/nuclei-templates

References

wordpress.org/plugins/wp-live-chat-support/ (Product)
plugins.trac.wordpress.org/changeset/2098577/wp-live-chat-support/trunk (Patch)
plugins.trac.wordpress.org/log/wp-live-chat-support/ (Product)

Frequently asked questions

What is CVE-2019-12498?: CVE-2019-12498 is a critical-severity vulnerability in 3cx Live Chat, classified under Missing Authorization. CVSS score: 9.8/10. Published 2020-03-20.
How severe is CVE-2019-12498?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-12498 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.