VBScript Content Injection Affecting marked package, versions <0.3.3


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.37% (73rd percentile)

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  • Snyk ID npm:marked:20140131-2
  • published 30 Jan 2014
  • disclosed 30 Jan 2014
  • credit Xiao Long

How to fix?

Upgrade marked to version 0.3.3 or higher.

Overview

marked is a low-level compiler for parsing markdown without caching or blocking for long periods of time.

Affected versions of this package are vulnerable to VBScript Content Injection. [xss link](vbscript:alert(1&#41;)

will get a link

<a href="vbscript:alert(1)">xss link</a>

This script does not work in IE 11 edge mode, but works in IE 10 compatibility view.

CVSS Scores

version 3.1
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Snyk

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

4.3 medium