CVE-2025-49963CWE-79cross-site-scripting

CVE-2025-49963

High · published October 22, 2025

CVSS v3.1
7.1
EPSS
0%
Percentile
15.4
In the wild
Unconfirmed
What it is

⚡ Reflected XSS in Simple Stripe Checkout could give attackers a free pass to execute malicious scripts! This is no joke; it's like leaving a back door propped open! 🚪💥 Think of it like a restaurant that allows anyone to scribble special requests on the order forms without checking — this means a cheeky diner could make some really nasty requests that spoil the meal for everyone! An attacker could exploit this vulnerability to inject malicious scripts into the web page, leading to stolen session cookies, defacement, or even phishing users. This could compromise user trust and lead to a loss of sensitive information!

Put simply

Think of it like a restaurant that allows anyone to scribble special requests on the order forms without checking — this means a cheeky diner could make some really nasty requests that spoil the meal for everyone! This vulnerability arises from improper neutralization of user input during web page generation, allowing attackers to insert malicious scripts into responses. Specifically, versions of Simple Stripe Checkout from n/a to 1.1.28 are affected.

What to do

An attacker could exploit this vulnerability to inject malicious scripts into the web page, leading to stolen session cookies, defacement, or even phishing users. This could compromise user trust and lead to a loss of sensitive information! Immediately update to Simple Stripe Checkout version 1.1.29 or later to mitigate this risk. Additionally, review input sanitization practices in your code to ensure that all user inputs are properly handled and validated. You've got this! With these steps, you'll kick this vulnerability to the curb and keep your users safe! 🛡️

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00250 · 15.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-10-22T19:15Z
References (1)
EPSS history
Timeline
  • 22 OCT 14:32Z
    WordPress Simple Stripe Checkout plugin <= 1.1.28 - Cross Site Scripting (XSS) vulnerability
    cvelistv5