Description

WordPress Plugin WP-Live Chat by 3CX is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin WP-Live Chat by 3CX version 6.2.01 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 6.2.02 or latest

References

https://sumofpwn.nl/advisory/2016/persistent_cross_site_scripting_in_wp_live_chat_support_plugin.html

https://packetstormsecurity.com/files/137859/WordPress-Live-Chat-Support-6.2.00-Cross-Site-Scripting.html

https://wordpress.org/plugins/wp-live-chat-support/changelog/

Related Vulnerabilities

WordPress Plugin JW Player 6 Cross-Site Scripting (2.1.14)

Jenkins Improper Input Validation Vulnerability (CVE-2012-4438)

WordPress Plugin WordPress Infinite Scroll-Ajax Load More Cross-Site Scripting (5.6.0.2)

WordPress Plugin Contact Bank-Contact Form Builder for WordPress Cross-Site Scripting (3.0.30)

WordPress Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2016-4567)

Severity

High

Classification

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS CWE-79