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CVE-2012-5851

MediumPublished

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...

Published: Nov 15, 2012
Updated: Aug 6, 2024
Assigning CNA: mitre
Evidence observed: Jul 19, 2012

Primary CVSS

4.3/ 10Medium

nvd · CVSS 2.0

AV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS probability estimate

2.3%

Low · next 30 days

Percentile: 82.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

WebKit Cross-Site Scripting Filter - 'Cross-Site ScriptingAuditor.cpp' Security BypassExploit
Tushar Dalvi · php · Jul 19, 2012

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