What is CVE-2018-11105?

CVE-2018-11105 is a medium-severity vulnerability in 3cx Live Chat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-05-15.

How severe is CVE-2018-11105?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-11105 known to be exploited?

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

XSS in 3cx Live Chat

CVE-2018-11105

There is stored cross site scripting in the wp-live-chat-support plugin before 8.0.08 for WordPress via the "name" (aka wplc_name) and "email" (aka wplc_email) input fields to wp-json/wp_live_chat_support/v1/start_chat whenever a malicious attacker would initiate a new chat with an administrator. NOTE: this issue exists because of an incomplete fix for CVE-2018-9864.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.011 (62.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

3cx Live_chat
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2018-11105?: CVE-2018-11105 is a medium-severity vulnerability in 3cx Live Chat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-05-15.
How severe is CVE-2018-11105?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-11105 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.