CVE-2026-104672: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Nexcess GiveWP

This vulnerability, identified as CWE-79, involves improper neutralization of input during web page generation in the GiveWP plugin by Nexcess. It enables unauthenticated cross-site scripting attacks in versions up to 4.17.0, allowing attackers to execute arbitrary scripts in the context of the affected web application. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and impacts on confidentiality, integrity, and availability.

Successful exploitation could allow an attacker to execute arbitrary scripts in the victim's browser, potentially leading to data theft, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability of the affected system. The vulnerability is exploitable remotely without authentication, increasing its risk.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, consider applying web application firewall (WAF) rules to detect and block XSS attempts and limit exposure by restricting user input where possible.