WordPress Plugin Vulnerabilities

Live Chat with Facebook Messenger < 1.0 - Contributor+ Stored XSS via Shortcode

Description

The plugin does not validate and escape some of its shortcode attributes before outputting them back into the page, which could allow users with a role as low as a contributor to perform Stored Cross-Site Scripting attacks, which could be used against high-privilege users such as admins.

Affects Plugins

Plugin icon
wp-facebook-messenger
No known fix

References

CVE
CVE-2023-5740
URL
https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wp-facebook-messenger/wp-facebook-messenger-10-authenticated-contributor-stored-cross-site-scripting-via-shortcode

Classification

Type
XSS
OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79
CVSS
6.4 (medium)

Miscellaneous

Original Researcher
Lana Codes
Verified
No
WPVDB ID
84c74ccb-7ce5-4c57-8c3b-48abe18135a1

Timeline

Publicly Published
2023-10-23 (about 2 years ago)
Added
2023-10-26 (about 2 years ago)
Last Updated
2023-10-26 (about 2 years ago)

Other

Published
Title
Published
2024-03-16
Title
OxyExtras < 1.4.5 - Unauthenticated Cross-Site Scripting
Published
2015-07-26
Title
WP Slimstat < 4.1.6 - Referer Header Cross-Site Scripting (XSS)
Published
2025-05-19
Title
EAN for WooCommerce < 5.4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
Published
2024-10-14
Title
Mitm Bug Tracker <= 1.0 - Reflected Cross-Site Scripting
Published
2023-01-20
Title
Very Simple Google Maps < 2.9 - Contributor+ Stored XSS