What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Nextendweb Nextend Facebook Connect nextend-facebook-connect allows Stored XSS.This issue affects Nextend Facebook Connect : from n/a through <= 3.1.19.
Explanation of Vulnerability in Simple Terms
02Summary
Nextend Facebook Connect versions 3.1.19 and earlier contain a cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers when they interact with affected pages. The vulnerability requires user interaction and can affect confidentiality, integrity, and availability of the site.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers to steal data, modify content, or disrupt site functionality.
Potential impact on your site
04Site Impact
Users' sessions and data are at risk; attackers can deface content, steal credentials, or redirect visitors to malicious sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account on the site; victim must visit or interact with a page containing the injected script.
Key dates
06Disclosure timeline
September 22, 2025
CVE published
May 13, 2026
Record updated