CVE-2012-5851

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-11-15 · updated 2026-06-16
Weakness: CWE-79

Description

html/parser/XSSAuditor.cpp in WebCore in WebKit, as used in Google Chrome through 22 and Safari 5.1.7, does not consider all possible output contexts of reflected data, which makes it easier for remote attackers to bypass a cross-site scripting (XSS) protection mechanism via a crafted string, aka rdar problem 12019108.

Affected products

Apple Safari: 5.1.7
Apple Webkit: all versions
Google Chrome: through 22.0.1229.96; 22.0.1229.0, 22.0.1229.1, 22.0.1229.2, 22.0.1229.3, 22.0.1229.4, 22.0.1229.6 (+53)

References

http://blog.opensecurityresearch.com/2012/09/simple-cross-site-scripting-vector-that.html
https://bugs.webkit.org/show_bug.cgi?id=92692
https://exchange.xforce.ibmcloud.com/vulnerabilities/80072
http://blog.opensecurityresearch.com/2012/09/simple-cross-site-scripting-vector-that.html
https://bugs.webkit.org/show_bug.cgi?id=92692
https://exchange.xforce.ibmcloud.com/vulnerabilities/80072

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