CVE-2009-4100

Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary…

published November 28, 2009

CVSS
—
EPSS
4%
Percentile
90.1
In the wild
Unconfirmed
What it is

⚠️ A crafty little flaw in the Yoono extension lets attackers use DOM events to execute commands with elevated privileges — like letting a guest chef into your kitchen without a background check! 🔥 Think of it like giving a visitor at a party access to the kitchen where they can whip up anything they want, without you even knowing. This vulnerability allows user-assisted attacks, where a click can lead to chaos behind the scenes! If exploited, this could lead to unauthorized command execution or cross-domain scripting attacks. Essentially, it opens the door for mischief-makers to meddle with your data or manipulate your browsing experience, all while you think everything's just fine!

Put simply

Think of it like giving a visitor at a party access to the kitchen where they can whip up anything they want, without you even knowing. This vulnerability allows user-assisted attacks, where a click can lead to chaos behind the scenes! This vulnerability arises because the Yoono extension operates with chrome privileges, allowing attackers to exploit DOM events like 'onload' to execute arbitrary commands. It’s a dangerous mix of privilege escalation and user interaction that can have serious consequences.

What to do

If exploited, this could lead to unauthorized command execution or cross-domain scripting attacks. Essentially, it opens the door for mischief-makers to meddle with your data or manipulate your browsing experience, all while you think everything's just fine! Upgrade the Yoono extension to version 6.1.1 or later to close this security hole. While you're at it, remind users to be cautious about what they click on — even well-known extensions can have hidden risks! You've got this! Stay vigilant and keep your extensions updated to ensure your browsing experience is as safe as possible! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03871 · 90.1th percentile
Published
2009-11-28T11:00Z
EPSS history
Timeline
  • 28 NOV 11:00Z
    Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary…
    cvelistv5