6.1
MEDIUM
CVE-2017-7839
Mozilla Firefox JavaScript Paste-Trick Vulnerability
Description

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.

INFO

Published Date :

June 11, 2018, 9:29 p.m.

Last Modified :

June 25, 2018, 6:46 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-7839 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-7839.

URL Resource
http://www.securityfocus.com/bid/101832 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039803 Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1402896 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2017-24/ Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-7839 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-7839 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jun. 25, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type http://www.securitytracker.com/id/1039803 No Types Assigned http://www.securitytracker.com/id/1039803 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2017-24/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2017-24/ Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/101832 No Types Assigned http://www.securityfocus.com/bid/101832 Third Party Advisory, VDB Entry
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1402896 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1402896 Issue Tracking, Permissions Required
    Added CWE CWE-79
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (including) 56.0.2
  • CVE Modified by [email protected]

    Jun. 13, 2018

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1039803 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/101832 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-7839 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-7839 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} -0.08%

score

0.54568

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability