CVE-2025-64675CWE-79

Azure Cosmos DB Spoofing Vulnerability

High · published December 18, 2025

CVSS v3.1
8.3
EPSS
1%
Percentile
53.1
In the wild
Unconfirmed
What it is

⚡ A crafty cross-site scripting vulnerability lurks in Azure Cosmos DB, letting unauthorized attackers forge identities over the network! Think of it like a mischievous prankster who can change their name on the guest list at a fancy party, allowing them to waltz in as someone else entirely — no one knows they're not supposed to be there! An attacker could exploit this vulnerability to impersonate trusted users, potentially stealing sensitive data or making unauthorized changes. It's a recipe for chaos, as this could lead to data leaks or unauthorized actions, all while your security team is left scratching their heads!

Put simply

Think of it like a mischievous prankster who can change their name on the guest list at a fancy party, allowing them to waltz in as someone else entirely — no one knows they're not supposed to be there! This vulnerability arises from improper input neutralization during web page generation, allowing attackers to inject malicious scripts into web content served by Azure Cosmos DB, leading to spoofing attacks.

What to do

An attacker could exploit this vulnerability to impersonate trusted users, potentially stealing sensitive data or making unauthorized changes. It's a recipe for chaos, as this could lead to data leaks or unauthorized actions, all while your security team is left scratching their heads! To mitigate this risk, ensure you validate and sanitize all user inputs before rendering them in web pages. Regularly audit your application for security vulnerabilities and consider implementing a Content Security Policy (CSP) to add an extra layer of defense. You've got this! Follow these steps, and you'll be one step closer to fortifying your security fortress! 🛡️

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00712 · 53.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2025-12-18T23:15Z
EPSS history
Timeline
  • 18 DEC 23:15Z
    Azure Cosmos DB Spoofing Vulnerability
    cvelistv5