What the vulnerability does
01Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tribulant Software Newsletters newsletters-lite allows Stored XSS.This issue affects Newsletters: from n/a through <= 4.12.
Explanation of Vulnerability in Simple Terms
02Summary
Tribulant Newsletters versions 4.12 and earlier contain a cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers when they interact with affected pages. The vulnerability requires user interaction and can affect confidentiality, integrity, and availability of the site.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers to steal data, modify content, or disrupt site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; site admins should update immediately and audit for malicious content.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account and the victim must visit a page containing the injected payload.
Key dates
06Disclosure timeline
December 30, 2025
CVE published
April 28, 2026
Record updated