CVE-2026-87948: CWE-79 Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") in Drupal SAML SSO - Service Provider

This vulnerability, identified as CWE-79, involves improper neutralization of input during web page generation in the Drupal SAML SSO - Service Provider module. This flaw enables Cross-Site Scripting (XSS) attacks, which can allow attackers to execute arbitrary scripts in the context of the affected web application. The affected versions range from 0.0.0 to before 3.2.0. No further technical details or exploit information are provided.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected Drupal SAML SSO - Service Provider module, potentially leading to session hijacking, defacement, or other malicious actions within the user's browser session. However, no known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch links or official fixes are provided, users should monitor Drupal's official channels for updates and apply any released patches promptly once available.