CVE-2018-11105 Cross-site scripting in n/a

Medium 6.1 Published 15 May 2018 Updated 5 Aug 2024

Stored XSS in wp-live-chat-support allows attackers to execute scripts in admin sessions via chat inputs, risking account takeover.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-11105?

CVE-2018-11105 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2018-11105?

It affects 1 product.

Products include 3cx Live Chat.

How do I fix CVE-2018-11105?

No fix has been published for CVE-2018-11105 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-11105 being exploited?

There is no known exploitation of CVE-2018-11105 in the wild and no public exploit code.

Sources

Also known as GHSA-8qw3-4qpj-p88r.