CVE-2016-1864
The XSS auditor in WebKit, as used in Apple iOS before 9.3 and Safari before 9.1, does not properly handle redirects in block mode, which allows remote attackers to obtain sensitive information via a crafted URL.
Does this matter?
Lower severity and a low EPSS score (1.86%). Track it; it rarely justifies an emergency change on its own.
Description
The XSS auditor in WebKit, as used in Apple iOS before 9.3 and Safari before 9.1, does not properly handle redirects in block mode, which allows remote attackers to obtain sensitive information via a crafted URL.
- CVSS 3.0
- 4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.86% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- apple/safari · apple/iphone os
- Source
- product-security@apple.com
EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00005.htmlVendor Advisory
- http://www.securityfocus.com/bid/91358
- http://www.securitytracker.com/id/1036344
- https://support.apple.com/HT206166Vendor Advisory
- https://support.apple.com/HT206171Vendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00000.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00005.htmlVendor Advisory
- http://www.securityfocus.com/bid/91358
- http://www.securitytracker.com/id/1036344
- https://support.apple.com/HT206166Vendor Advisory
- https://support.apple.com/HT206171Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.