CVE-2026-42754 HIGH

CVE-2026-42754: WordPress Favicon plugin <= 1.3.46 - Cross Site Scripting (XSS) vulnerability

Vendor Phbernard
Product Favicon
Weakness CWE-79 · XSS
Published May 27, 2026
Last update May 27, 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 phbernard Favicon favicon-by-realfavicongenerator allows Reflected XSS.This issue affects Favicon: from n/a through <= 1.3.46.

Explanation of Vulnerability in Simple Terms

02Summary

The Favicon product versions 1.3.46 and earlier 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 user, executes arbitrary JavaScript in the user's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and affects the scope beyond the vulnerable component.

What an attacker can do

03Attacker Capabilities

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

Potential impact on your site

04Site Impact

Users visiting affected pages may have sessions hijacked, credentials stolen, or see defaced content.

Conditions required to exploit

05Prerequisites

A site user must visit an attacker-controlled or attacker-modified page containing the malicious payload.

Key dates

06Disclosure timeline

May 27, 2026 CVE published
May 27, 2026 Record updated

Related vulnerabilities

08Related CVE