CVE-2021-27903

An issue was discovered in Craft CMS before 3.6.7

published June 30, 2021

CVSS
โ€”
EPSS
3%
Percentile
86.5
In the wild
Unconfirmed
What it is

โš ๏ธ A session hijack could lead to a sneaky takeover! With Craft CMS versions prior to 3.6.7, an attacker might exploit this vulnerability to execute remote code if they manage to hijack an admin's session. ๐Ÿ”ฅ Think of it like a guest at a hotel cleverly snagging the master keycard when the front desk is distracted โ€” suddenly, they can access all the VIP rooms and services without any checks! This could allow the attacker to run arbitrary code on the server, threatening everything from data breaches to full control over the site. Imagine an intruder walking into a party, taking over the music, and turning it into a disaster!

Put simply

Think of it like a guest at a hotel cleverly snagging the master keycard when the front desk is distracted โ€” suddenly, they can access all the VIP rooms and services without any checks! This vulnerability arises from insufficient restrictions on administrative actions, allowing potential remote code execution if an attacker successfully hijacks an administrator's session.

What to do

This could allow the attacker to run arbitrary code on the server, threatening everything from data breaches to full control over the site. Imagine an intruder walking into a party, taking over the music, and turning it into a disaster! To safeguard against this, update Craft CMS to version 3.6.7 or later immediately. Additionally, reinforce session management practices and consider implementing multi-factor authentication to thwart unauthorized access. You've got this! With these steps, you'll keep your Craft CMS safe and sound. ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02819 ยท 86.5th percentile
Published
2021-06-30T11:56Z
EPSS history
Timeline
  • 30 JUN 11:56Z
    An issue was discovered in Craft CMS before 3.6.7
    cvelistv5