Vulnerability · Published Oct 24, 2023 · Assigned by Wordfence
CVE-2023-5740Live Chat with Facebook Messenger <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Medium 6.4
In plain English
A medium-severity cross-site scripting in Live Chat with Facebook Messenger from ninjateam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Official description
The Live Chat with Facebook Messenger plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'messenger' shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ninjateam | Live Chat with Facebook Messenger | 0 – through 1.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N