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CVE-2017-7839

Good to know:

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Date: June 11, 2018

Control characters prepended before "javascript:" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57.

Language: Unix

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2017-7839
https://www.mozilla.org/security/advisories/mfsa2017-24/
http://www.securitytracker.com/id/1039803
http://www.securityfocus.com/bid/101832
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-7839
https://bugzilla.mozilla.org/show_bug.cgi?id=1402896
https://www.mend.io/vulnerability-database/CVE-2017-7839

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 - 57.0-1

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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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