CVE-2025-43863CWE-307

vantage6 lacks brute-force protection on change password functionality

Low · published June 12, 2025

CVSS v4.0
1.7
EPSS
0%
Percentile
39.3
In the wild
Unconfirmed
What it is

⚠️ A crafty little brute-force opportunity awaits! If an attacker can snag an authenticated session, they can keep hammering the change password route until they guess it right. 😱 Think of it like a mischievous kid at a vending machine, repeatedly pressing the button for their favorite snack until it finally drops — no one is stopping them from trying endlessly! An attacker gaining access could potentially change a user's password, locking them out and causing all sorts of inconvenience. While it’s a low-severity flaw (CVSS score of 1.7), it’s still a sneaky way to disrupt user access. Good news: the attack requires an authenticated session first, so it’s not quite a walk in the park for them.

Put simply

Think of it like a mischievous kid at a vending machine, repeatedly pressing the button for their favorite snack until it finally drops — no one is stopping them from trying endlessly! This vulnerability allows authenticated users to exploit the change password functionality by brute-forcing their way through the password attempts, as the system provides feedback on incorrect passwords indefinitely.

What to do

An attacker gaining access could potentially change a user's password, locking them out and causing all sorts of inconvenience. While it’s a low-severity flaw (CVSS score of 1.7), it’s still a sneaky way to disrupt user access. Good news: the attack requires an authenticated session first, so it’s not quite a walk in the park for them. Upgrade your Vantage6 framework to version 4.11 to patch this vulnerability. Additionally, consider implementing rate limiting on the password change route to mitigate any potential brute-force attempts in the future. You've got this! Follow these steps, and you'll have your security tightened up in no time. 🛡️

The record
Technical detail
CVSS v4.0
1.7 · LOW
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U
EPSS
0.00466 · 39.3th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2025-06-12T17:29Z
EPSS history
Timeline
  • 12 JUN 17:29Z
    vantage6 lacks brute-force protection on change password functionality
    cvelistv5