CVE-2021-30884

MEDIUM

iPadOS < 15.0 - Browsing History Exposure via CSS Compositing

Title source: llm
STIX 2.1

Description

The issue was resolved with additional restrictions on CSS compositing. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Visiting a maliciously crafted website may reveal a user's browsing history.

References (5)

Core 5
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212814
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212819
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212815
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212869
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/12/20/6

Scores

CVSS v3 4.7
EPSS 0.0111
EPSS Percentile 62.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Details

Status published
Products (5)
apple/ipados < 15.0
apple/iphone_os < 15.0
apple/macos < 12.0.1
apple/tvos < 15.0
apple/watchos < 8.0
Published Aug 24, 2021
Tracked Since Feb 18, 2026