What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in aviplugins.com Custom Post Type Attachment custom-post-type-pdf-attachment allows Stored XSS.This issue affects Custom Post Type Attachment: from n/a through <= 3.4.6.
Explanation of Vulnerability in Simple Terms
02Summary
Custom Post Type Attachment versions up to 3.4.6 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, including administrators. The vulnerability requires user interaction to trigger and can affect the entire site scope.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view affected content.
Potential impact on your site
04Site Impact
Attackers with contributor or subscriber access can compromise admin accounts, steal data, or modify site content via stored XSS.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account and the victim must visit a page containing the injected payload.
Key dates
06Disclosure timeline
October 27, 2025
CVE published
April 28, 2026
Record updated