CVE-2025-48354

Vulnerability

Overview

CVE-2025-48354 is a stored cross-site scripting (XSS) vulnerability found in the WordPress plugin Better Post & Filter Widgets for Elementor, affecting versions up to and including 1.6.1. The root cause is improper neutralization of user-supplied input during web page generation, which allows an attacker to inject arbitrary JavaScript or HTML that becomes permanently stored on the server and executed when other users view the compromised page [1].

Exploitation

Prerequisites

Exploitation requires an authenticated user with at least contributor-level privileges to submit a crafted payload through the plugin's widget settings or post meta fields. The attacker does not need any special network position beyond normal web access to the WordPress admin area. Once the payload is saved, it will execute in the browser of any visitor (including site administrators) who loads the affected widget, without requiring any further interaction from the victim [1].

Impact

Successful exploitation enables the attacker to perform a variety of malicious actions: redirect visitors to phishing sites, inject advertisements, deface the page, steal session cookies, or perform other client-side attacks. Because the XSS is stored, the malicious script can affect every user who visits the compromised page, amplifying the reach of the attack [1].

Mitigation

The vendor has released version 1.6.2 which fixes the vulnerability by properly sanitizing output. Users are strongly advised to update immediately. For sites that cannot be updated, Patchstack recommends enabling auto-updates for vulnerable plugins or consulting with a hosting provider for temporary workarounds [1].