CVE-2015-3753: Apple iPhone OS

Medium severity, CVSS 5.0. EPSS: 2.7% chance of exploitation in the next 30 days.

WebKit in Apple Safari before 6.2.8, 7.x before 7.1.8, and 8.x before 8.0.8, as used in iOS before 8.4.1 and other products, does not properly perform taint checking for CANVAS elements, which allows remote attackers to bypass the Same Origin Policy and obtain sensitive image data by leveraging a redirect to a data:image resource.

Affected products

• Apple iPhone OS: before 8.4.1 (fixed in 8.4.1)
• Apple Safari: from 6.0, before 6.2.8 (fixed in 6.2.8); from 7.0, before 7.1.8 (fixed in 7.1.8); from 8.0, before 8.0.8 (fixed in 8.0.8)

Published 2015-08-16. Last modified 2026-06-17.