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prismjs@1.2.0 vulnerabilities

Lightweight, robust, elegant syntax highlighting. A spin-off project from Dabblet.

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Direct Vulnerabilities

Known vulnerabilities in the prismjs package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • H
Regular Expression Denial of Service (ReDoS)

prismjs is a lightweight, robust, elegant syntax highlighting library.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the Prism.languages.markup.comment regex.

PoC

var comment = /<!--[\s\S]*?-->/
for(var i = 1; i <= 50000; i++) {
  var time = Date.now();
  var attack_str = ""+"<!--".repeat(i*10000)+"-"
  comment.test(attack_str)
  var time_taken = Date.now() - time;
  console.log("attack_str.length: " + attack_str.length + ": " + time_taken+" ms")
}

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade prismjs to version 1.25.0 or higher.

<1.25.0
  • H
Regular Expression Denial of Service (ReDoS)

prismjs is a lightweight, robust, elegant syntax highlighting library.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the prism-asciidoc and prism-erb components. When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade prismjs to version 1.24.0 or higher.

<1.24.0
  • H
Regular Expression Denial of Service (ReDoS)

prismjs is a lightweight, robust, elegant syntax highlighting library.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the prism-asciidoc, prism-rest, prism-tap and prism-eiffel components.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade prismjs to version 1.23.0 or higher.

<1.23.0
  • H
Cross-site Scripting (XSS)

prismjs is a lightweight, robust, elegant syntax highlighting library.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the easing preview of the Previewers plugin. It allows attackers to execute arbitrary code in Safari and Internet Explorer.

How to fix Cross-site Scripting (XSS)?

Upgrade prismjs to version 1.21.0 or higher.

>=1.1.0 <1.21.0
  • H
Regular Expression Denial of Service (ReDoS)

prismjs is a lightweight, robust, elegant syntax highlighting library.

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS). The 'template-string'-Regexp is supposed to match a multiline string, meaning that if it doesn't find a match it will scan to the end of the file and then backtrack. Every backslash doubles the number of steps needed causing exponential growth and memory usage.

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade prismjs to version 1.5.0 or higher.

<1.5.0
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