CVE-2026-57394 HIGH

CVE-2026-57394: WordPress Newsletters plugin <= 4.14 - Cross Site Scripting (XSS) vulnerability

Vendor Tribulant Software
Product Newsletters
Weakness CWE-79 · XSS
Published July 13, 2026
Last update July 13, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tribulant Software Newsletters newsletters-lite allows Reflected XSS.This issue affects Newsletters: from n/a through <= 4.14.

Explanation of Vulnerability in Simple Terms

02Summary

Tribulant Newsletters versions 4.14 and earlier contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into the application. An attacker can craft a malicious link or page that, when visited by a site administrator or user, executes arbitrary JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser to steal credentials or perform unauthorized actions.

Potential impact on your site

04Site Impact

Administrators and users visiting crafted links risk session hijacking, data theft, and unauthorized site modifications.

Conditions required to exploit

05Prerequisites

Attacker must trick a user into visiting a malicious link or page (user interaction required); no authentication needed.

Key dates

06Disclosure timeline

July 13, 2026 CVE published

Related vulnerabilities

08Related CVE