CVE-2015-5780

The Safari Extensions implementation in Apple Safari before 9 does not require user confirmation before replacing an installed extension, which has unspecified…

published October 9, 2015

CVSS
—
EPSS
2%
Percentile
83.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky oversight in Safari could allow an extension replacement without so much as a "please" — like replacing a restaurant order without asking the customer first! Imagine you’re at your favorite diner, and the waiter swaps out your burger for a completely different dish without checking with you first. That’s how this flaw works — an extension can be replaced without user consent, potentially leading to unexpected surprises. This could allow malicious extensions to sneak into users' browsers, gaining access to sensitive information, tracking data, or even altering browsing behavior without a hint of user awareness. It's a subtle but significant risk for those using older versions of Safari!

Put simply

Imagine you’re at your favorite diner, and the waiter swaps out your burger for a completely different dish without checking with you first. That’s how this flaw works — an extension can be replaced without user consent, potentially leading to unexpected surprises. The vulnerability arises from Safari's failure to require user confirmation when an installed extension is replaced, leading to potential unauthorized changes to the browsing environment.

What to do

This could allow malicious extensions to sneak into users' browsers, gaining access to sensitive information, tracking data, or even altering browsing behavior without a hint of user awareness. It's a subtle but significant risk for those using older versions of Safari! Users should update Safari to version 9 or later to mitigate this risk. Additionally, review installed extensions regularly to ensure they are safe and intended. Don't forget to enable any available security settings! You've got this! Stay secure by keeping your browser updated and vigilant. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02338 · 83.5th percentile
Published
2015-10-09T01:00Z
EPSS history
Timeline
  • 09 OCT 01:00Z
    The Safari Extensions implementation in Apple Safari before 9 does not require user confirmation before replacing an installed extension, which has unspecified…
    cvelistv5