CVE-2025-53351CWE-79cross-site-scripting

CVE-2025-53351

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 in Fidelo Snippet could have a crafty attacker sending you on a wild ride! 🚀 Think of it like a chef who accidentally lets a rogue ingredient slip into the dish, leading to unexpected and possibly disastrous consequences for anyone who takes a bite. This vulnerability allows attackers to inject malicious scripts into a page, which can then execute in the browser of anyone clicking on the compromised link. This means they could steal cookies, capture login credentials, or even spread further malware—yikes!

Put simply

Think of it like a chef who accidentally lets a rogue ingredient slip into the dish, leading to unexpected and possibly disastrous consequences for anyone who takes a bite. The improper neutralization of user inputs during web page generation leads to this reflected cross-site scripting (XSS) vulnerability, letting attackers manipulate the content that is rendered on users' browsers.

What to do

This vulnerability allows attackers to inject malicious scripts into a page, which can then execute in the browser of anyone clicking on the compromised link. This means they could steal cookies, capture login credentials, or even spread further malware—yikes! To secure your application, upgrade Fidelo Snippet to a patched version above 1.12 immediately. Additionally, implement input validation and output encoding to prevent any untrusted data from executing as code. 🛡️ You’ve got this! By taking these steps, you’ll be a security hero 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 Fidelo Snippet plugin <= 1.12 - Cross Site Scripting (XSS) vulnerability
    cvelistv5