CVE-2025-4406 MEDIUM

CVE-2025-4406: wpForo Forum <= 2.4.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Profile Avatar

Vendor Tomdever
Product wpForo Forum
Weakness CWE-79 · XSS
Published July 10, 2025
Last update April 8, 2026

CVSS base score

5.4/10
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:N

What the vulnerability does

01Description

The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 2.4.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Explanation of Vulnerability in Simple Terms

02Summary

wpForo Forum versions up to 2.4.5 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. An attacker with forum access can craft a request that, when visited by another user, executes JavaScript in their browser. This can lead to session hijacking, credential theft, or unauthorized actions on behalf of the victim.

What an attacker can do

03Attacker Capabilities

Inject and execute JavaScript in other users' browsers to steal sessions or perform actions as them.

Potential impact on your site

04Site Impact

Forum users' accounts and data are at risk if they interact with content posted by attackers.

Conditions required to exploit

05Prerequisites

Attacker must have a forum account (low privilege). Victim must visit a page containing the malicious payload.

Key dates

06Disclosure timeline

July 10, 2025 CVE published
April 8, 2026 Record updated