CVE-2025-31379 HIGH

CVE-2025-31379: WordPress Insert HTML Here plugin <= 1.0 - Reflected Cross Site Scripting (XSS) vulnerability

Vendor Programphases
Product Insert HTML Here
Weakness CWE-79 · XSS
Published April 11, 2025
Last update April 28, 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 programphases Insert HTML Here insert-html-here allows Reflected XSS.This issue affects Insert HTML Here: from n/a through <= 1.0.

Explanation of Vulnerability in Simple Terms

02Summary

Insert HTML Here versions 1.0 and earlier contain a cross-site scripting vulnerability that allows attackers to inject malicious scripts into web pages. An attacker can craft a malicious link or page that, when visited by a site user, executes arbitrary JavaScript in the user's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction to exploit.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in users' browsers to steal sessions, credentials, or deface content.

Potential impact on your site

04Site Impact

Site visitors can be compromised; attackers may steal admin sessions or modify site content without direct access.

Conditions required to exploit

05Prerequisites

User must visit an attacker-controlled link or page; no authentication required.

Key dates

06Disclosure timeline

April 11, 2025 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE