CVE-2025-12448 MEDIUM

CVE-2025-12448: Smartsupp – live chat, AI shopping assistant and chatbots <= 3.9.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting

Vendor Smartsupp
Product Smartsupp – live chat, AI shopping assistant and chatbots
Weakness CWE-79 · XSS
Published February 19, 2026
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The Smartsupp – live chat, AI shopping assistant and chatbots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'code' parameter in all versions up to, and including, 3.9.1 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 an injected page.

Explanation of Vulnerability in Simple Terms

02Summary

Smartsupp versions up to 3.9.1 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. An attacker with low-level account access can craft malicious input that executes in other users' browsers, potentially compromising their sessions or data.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf.

Potential impact on your site

04Site Impact

Users of your Smartsupp chat widget may have their sessions compromised or be redirected to malicious sites by attackers with basic account access.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account on the Smartsupp service; no user interaction required from victims.

Key dates

06Disclosure timeline

February 19, 2026 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE