CVE-2025-23943 is a stored cross-site scripting vulnerability in the aruvi PDF.js Shortcode plugin (versions up to 1.0). It results from improper input neutralization during web page generation, enabling attackers to inject malicious scripts that execute in the context of affected users' browsers. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, and user interaction needed, with a scope change and partial impact on confidentiality, integrity, and availability.

Successful exploitation can lead to execution of arbitrary scripts in the context of the affected web application, potentially allowing attackers to steal user data, hijack user sessions, or perform actions with the privileges of the victim user. The impact is rated medium severity with partial confidentiality, integrity, and availability impacts. No known exploits are reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor the vendor's communications for updates. Until a fix is available, consider restricting user input or applying web application firewall (WAF) rules to detect and block malicious payloads related to this vulnerability.