CVE-2025-26566 HIGH

CVE-2025-26566: WordPress In Stock Mailer for WooCommerce Plugin <= 2.1.1 - Reflected Cross Site Scripting (XSS) vulnerability

Vendor Frank
Product In Stock Mailer for WooCommerce
Weakness CWE-79 · XSS
Published March 26, 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 Frank In Stock Mailer for WooCommerce in-stock-mailer-for-woocommerce allows Reflected XSS.This issue affects In Stock Mailer for WooCommerce: from n/a through <= 2.1.1.

Explanation of Vulnerability in Simple Terms

02Summary

In Stock Mailer for WooCommerce versions 2.1.1 and earlier contain a cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in the browsers of site visitors or administrators. The vulnerability requires user interaction—typically clicking a malicious link—and can affect multiple users across the site. Update to a version newer than 2.1.1 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in visitors' browsers, stealing cookies, session tokens, or performing actions on their behalf.

Potential impact on your site

04Site Impact

Visitors and admins could have their sessions hijacked, credentials stolen, or be redirected to phishing sites without your knowledge.

Conditions required to exploit

05Prerequisites

No authentication required. Victim must click a malicious link or visit an attacker-controlled page that triggers the vulnerability.

Key dates

06Disclosure timeline

March 26, 2025 CVE published
April 28, 2026 Record updated