What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Binsaifullah Posten posten-post-blocks allows DOM-Based XSS.This issue affects Posten: from n/a through <= 0.0.1.
Explanation of Vulnerability in Simple Terms
02Summary
Posten versions 0.0.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows an authenticated user to inject malicious scripts. When a victim visits a page containing the attacker's payload, the script executes in their browser with access to their session. The vulnerability affects the integrity and confidentiality of user data within the application scope.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
User sessions and data can be compromised if authenticated users visit pages with injected malicious content.
Conditions required to exploit
05Prerequisites
Attacker must be authenticated with low-level privileges and the victim must visit a page containing the malicious payload.
Key dates
06Disclosure timeline
April 1, 2025
CVE published
April 28, 2026
Record updated