CVE-2025-6216CWE-640

Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability

Critical · published June 21, 2025

CVSS v3.0
9.8
EPSS
48%
Percentile
98.9
In the wild
Unconfirmed
What it is

🚨 A password recovery feature in Allegra is your open invitation to attackers! No authentication is needed, and an exploit could be just a predictable token away! 🔥 Think of it like a restaurant where anyone can walk in, grab a key from behind the counter, and access the kitchen. This vulnerability allows attackers to bypass security checks as easily as entering through an unlocked door! An attacker could exploit this flaw to completely bypass authentication, gaining unauthorized access to sensitive user accounts. This means they could potentially reset passwords, access private data, or impersonate users—it's absolutely devastating!

Put simply

Think of it like a restaurant where anyone can walk in, grab a key from behind the counter, and access the kitchen. This vulnerability allows attackers to bypass security checks as easily as entering through an unlocked door! The flaw resides in the password recovery mechanism, where a predictable value is used to generate password reset tokens. This allows attackers to generate valid tokens without needing authentication, effectively granting them full access.

What to do

An attacker could exploit this flaw to completely bypass authentication, gaining unauthorized access to sensitive user accounts. This means they could potentially reset passwords, access private data, or impersonate users—it's absolutely devastating! Immediately update Allegra to the latest patched version to close this vulnerability. Consider reviewing and improving the token generation process to ensure randomness and unpredictability. Also, enable two-factor authentication wherever possible for an extra security layer! You've got this! Act quickly and you'll have this vulnerability locked down in no time. 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.47775 · 98.9th percentile
Weakness
CWE-640 · Weak Password Recovery Mechanism for Forgotten Password
Published
2025-06-21T00:08Z
EPSS history
Timeline
  • 21 JUN 00:08Z
    Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability
    cvelistv5