CVE-2025-49411 HIGH

CVE-2025-49411: WordPress iFrame Block plugin <= 0.1.1 - Cross Site Scripting (XSS) vulnerability

Vendor Vikas Sharma
Product iFrame Block
Weakness CWE-79 · XSS
Published August 20, 2025
Last update April 28, 2026
View on NVD All CVEs

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 Vikas Sharma iFrame Block allows Stored XSS. This issue affects iFrame Block: from n/a through 0.1.1.

Explanation of Vulnerability in Simple Terms

02Summary

iFrame Block versions up to 0.1.1 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts. 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 on the site.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser when they visit a crafted page or click a link.

Potential impact on your site

04Site Impact

Administrators or users visiting malicious links could have their sessions hijacked, credentials stolen, or site content modified without their knowledge.

Conditions required to exploit

05Prerequisites

The victim must visit a page or click a link controlled by the attacker. No authentication required.

Key dates

06Disclosure timeline

August 20, 2025 CVE published
April 28, 2026 Record updated