CVE-2025-49955CWE-79cross-site-scripting

CVE-2025-49955

High · published October 22, 2025

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

⚡ Heads up! A crafty flaw in WP Smart Flexslider means attackers can hijack your pages with their own JavaScript, leading to reflected XSS attacks. 🔥 Think of it like a restaurant that serves dishes without checking for allergens. If a mischievous chef can slip in his own ingredients, diners could end up with a nasty surprise. In web terms, it’s a sneaky way for attackers to inject harmful code into your site! An attacker could easily execute malicious scripts in the context of your website, stealing cookies, session tokens, or other sensitive data from unsuspecting users. This could lead to identity theft or unauthorized access to user accounts — absolutely devastating for your online reputation!

Put simply

Think of it like a restaurant that serves dishes without checking for allergens. If a mischievous chef can slip in his own ingredients, diners could end up with a nasty surprise. In web terms, it’s a sneaky way for attackers to inject harmful code into your site! This vulnerability allows unfiltered user input during web page generation, enabling reflected cross-site scripting (XSS) attacks where malicious scripts are executed immediately after a user clicks a crafted link.

What to do

An attacker could easily execute malicious scripts in the context of your website, stealing cookies, session tokens, or other sensitive data from unsuspecting users. This could lead to identity theft or unauthorized access to user accounts — absolutely devastating for your online reputation! To protect your site, immediately update WP Smart Flexslider to version 2.6 or later, which fixes this flaw. Additionally, implement input validation to sanitize any user inputs and consider setting a Content Security Policy to mitigate future risks. 🛡️ You’ve got this! By taking these steps, you’ll bolster your site’s defenses and secure your users. 💪✨

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 WP Smart Flexslider Plugin <= 2.5 - Cross Site Scripting (XSS) Vulnerability
    cvelistv5