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CVE-2019-11720

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Date: July 23, 2019

Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. This vulnerability affects Firefox < 68.

Language: Unix

Severity Score

Related Resources (11)

https://nvd.nist.gov/vuln/detail/CVE-2019-11720
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
https://access.redhat.com/security/cve/CVE-2019-11720
https://www.mozilla.org/security/advisories/mfsa2019-21/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-11720
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
https://bugzilla.mozilla.org/show_bug.cgi?id=1556230
https://security.gentoo.org/glsa/201908-12
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
https://www.mend.io/vulnerability-database/CVE-2019-11720

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Top Fix

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Upgrade Version

Upgrade to version firefox - 68.0-1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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