CVE-2025-26739 MEDIUM

CVE-2025-26739: WordPress newseqo theme <= 2.1.1 - Stored Cross Site Scripting (XSS) vulnerability

Vendor Themefunction
Product newseqo
Weakness CWE-79 · XSS
Published March 26, 2025
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/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 themefunction newseqo allows Stored XSS.This issue affects newseqo: from n/a through 2.1.1.

Explanation of Vulnerability in Simple Terms

02Summary

Newseqo versions up to 2.1.1 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers when they view affected content. The vulnerability requires user interaction and can affect the confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers and steal data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other visitors; site admins should audit user-generated content and update immediately.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account and the victim must view the page containing the injected script.

Key dates

06Disclosure timeline

March 26, 2025 CVE published
April 28, 2026 Record updated