CVE-2025-52763CWE-79cross-site-scripting

CVE-2025-52763

High · published October 22, 2025

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

⚡ A sneaky Reflected XSS vulnerability lurks in Nifty Backups version 1.08 and below, ready to spring into action! Think of this as a restaurant that serves dishes without checking the ingredients — if a customer sneaks in a toxic spice, everyone at the table is at risk! An attacker could craft a malicious link that, when clicked, could hijack the session of any user visiting the site. This means they could steal cookies, impersonate users, and potentially wreak havoc on the system. It's a recipe for disaster!

Put simply

Think of this as a restaurant that serves dishes without checking the ingredients — if a customer sneaks in a toxic spice, everyone at the table is at risk! This Cross-site Scripting (XSS) vulnerability occurs because the application fails to properly neutralize user input during web page generation, allowing attackers to inject malicious scripts.

What to do

An attacker could craft a malicious link that, when clicked, could hijack the session of any user visiting the site. This means they could steal cookies, impersonate users, and potentially wreak havoc on the system. It's a recipe for disaster! Immediately update Nifty Backups to version 1.09 or higher to close this vulnerability. Additionally, implement input validation and output encoding practices to safeguard against future XSS attacks. Don't forget to audit your web application for any other potential vulnerabilities! You've got this! Follow these steps, and you'll have a safer setup in no time. 🛡️

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 Nifty Backups plugin <= 1.08 - Cross Site Scripting (XSS) vulnerability
    cvelistv5