Prismjs Prism
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By the Year
In 2025 there have been 1 vulnerability in Prismjs Prism with an average score of 5.4 out of ten. Prism did not have any published security vulnerabilities last year. That is, 1 more vulnerability have already been reported in 2025 as compared to last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2025 | 1 | 5.40 |
| 2024 | 0 | 0.00 |
| 2023 | 0 | 0.00 |
| 2022 | 1 | 6.10 |
| 2021 | 3 | 6.83 |
It may take a day or so for new Prism vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Prismjs Prism Security Vulnerabilities
PrismJS <=1.29.0: DOM Clobbering XSS via currentScript hack
CVE-2024-53382
5.4 - Medium
- March 03, 2025
Prism (aka PrismJS) through 1.29.0 allows DOM Clobbering (with resultant XSS for untrusted input that contains HTML but does not directly contain JavaScript), because document.currentScript lookup can be shadowed by attacker-injected HTML elements.
XSS
Prism is a syntax highlighting library
CVE-2022-23647
6.1 - Medium
- February 18, 2022
Prism is a syntax highlighting library. Starting with version 1.14.0 and prior to version 1.27.0, Prism's command line plugin can be used by attackers to achieve a cross-site scripting attack. The command line plugin did not properly escape its output, leading to the input text being inserted into the DOM as HTML code. Server-side usage of Prism is not impacted. Websites that do not use the Command Line plugin are also not impacted. This bug has been fixed in v1.27.0. As a workaround, do not use the command line plugin on untrusted inputs, or sanitize all code blocks (remove all HTML code text) from all code blocks that use the command line plugin.
XSS
prism is vulnerable to Inefficient Regular Expression Complexity
CVE-2021-3801
6.5 - Medium
- September 15, 2021
prism is vulnerable to Inefficient Regular Expression Complexity
Prism is a syntax highlighting library
CVE-2021-32723
6.5 - Medium
- June 28, 2021
Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). 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. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.
Resource Exhaustion
The package prismjs before 1.23.0 are vulnerable to Regular Expression Denial of Service (ReDoS)
CVE-2021-23341
7.5 - High
- February 18, 2021
The package prismjs before 1.23.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the prism-asciidoc, prism-rest, prism-tap and prism-eiffel components.
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