CVE-2017-16634

In Joomla!

published November 9, 2017

CVSS
—
EPSS
4%
Percentile
91.2
In the wild
Unconfirmed
What it is

⚠️ A critical oversight in Joomla! lets crafty intruders slip by your 2-factor authentication barriers — like a friend who knows the secret code to your clubhouse! 🚪 Think of your 2FA as the special handshake at a club. If someone can skip the handshake, they could just stroll right in without showing their membership card. That's exactly what this bug allows! An attacker could potentially gain unauthorized access to users' accounts, undermining the whole purpose of two-factor authentication. This means sensitive information could be compromised, leading to data leaks or changes to site content without the user's consent. Absolutely devastating for security!

Put simply

Think of your 2FA as the special handshake at a club. If someone can skip the handshake, they could just stroll right in without showing their membership card. That's exactly what this bug allows! This vulnerability in Joomla! versions prior to 3.8.2 allows third parties to bypass the 2FA mechanism, creating a way for unauthorized access without the user's normal authentication methods being triggered.

What to do

An attacker could potentially gain unauthorized access to users' accounts, undermining the whole purpose of two-factor authentication. This means sensitive information could be compromised, leading to data leaks or changes to site content without the user's consent. Absolutely devastating for security! Upgrade to Joomla! version 3.8.2 or later immediately to close this security gap. Additionally, review your site security practices to ensure that 2FA is effectively implemented and functioning as intended. Regular audits can help prevent similar issues in the future. You've got this! Follow these steps, and you’ll enhance your site’s defenses in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04398 · 91.2th percentile
Published
2017-11-09T19:00Z
EPSS history
Timeline
  • 09 NOV 19:00Z
    In Joomla!
    cvelistv5