CVE-2025-13639CWE-79cross-site-scripting

CVE-2025-13639

High · published December 3, 2025

CVSS v3.1
8.1
EPSS
0%
Percentile
16.2
In the wild
Unconfirmed
What it is

⚡ A crafty crafted HTML page is all it takes for an attacker to manipulate your WebRTC in Google Chrome pre-143.0.7499.41! 📄✨ Think of it like a restaurant menu that allows customers to write their own orders. If unchecked, savvy diners could request bizarre dishes that the kitchen simply has to prepare! With this vulnerability, a remote attacker could potentially gain control over what your browser reads or writes, allowing for unauthorized data access or even manipulation. It’s the kind of sneaky maneuver that could lead to sensitive information being leaked or modified—all without any red flags!

Put simply

Think of it like a restaurant menu that allows customers to write their own orders. If unchecked, savvy diners could request bizarre dishes that the kitchen simply has to prepare! This flaw in WebRTC's implementation permits an attacker to leverage crafted HTML content to execute arbitrary read/write operations. This means they can manipulate the data being sent or received through the browser without proper authorization checks.

What to do

With this vulnerability, a remote attacker could potentially gain control over what your browser reads or writes, allowing for unauthorized data access or even manipulation. It’s the kind of sneaky maneuver that could lead to sensitive information being leaked or modified—all without any red flags! To safeguard your system, update Google Chrome to version 143.0.7499.41 or later immediately. Additionally, encourage users to be cautious with untrusted HTML pages to minimize risk. Staying vigilant about browser updates is key! You’ve got this! By taking these steps, you'll have your browser locked down like a pro. 🛡️

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00255 · 16.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-03T00:15Z
Affected products (2)
ProductVersionsFixed in
google/chrome< 143.0.7499.40143.0.7499.40
google/chrome< 143.0.7499.40143.0.7499.40
References (2)
EPSS history
Timeline
  • 02 DEC 19:00Z
    Inappropriate implementation in WebRTC in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to perform arbitrary read/write via a crafted HTML…
    cvelistv5