CVE-2026-25453 MEDIUM

CVE-2026-25453: WordPress Advanced iFrame plugin <= 2025.10 - Cross Site Scripting (XSS) vulnerability

Vendor Mdempfle
Product Advanced iFrame
Weakness CWE-79 · XSS
Published February 19, 2026
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 mdempfle Advanced iFrame advanced-iframe allows DOM-Based XSS.This issue affects Advanced iFrame: from n/a through <= 2025.10.

Explanation of Vulnerability in Simple Terms

02Summary

Advanced iFrame versions up to 2025.10 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with low-level site access can craft a malicious link that, when clicked by another user, executes arbitrary JavaScript in their browser session. 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 other users' browsers via a crafted link.

Potential impact on your site

04Site Impact

Authenticated users can be tricked into executing scripts that steal sessions, modify content, or perform actions as the victim.

Conditions required to exploit

05Prerequisites

Attacker must have low-level site authentication; victim must click the malicious link.

Key dates

06Disclosure timeline

February 19, 2026 CVE published
April 28, 2026 Record updated