CVE-2026-49493

Markdown Preview Enhanced before 0.8.28 parses Bitfield fenced code blocks with interpretJS, which evaluates the block content as code via vm.runInNewContext, allowing arbitrary code execution. A crafted markdown document containing a malicious bitfield code block executes attacker-controlled cod...

EUVD-2026-34870

Markdown Preview Enhanced before 0.8.28 parses WaveDrom diagrams by evaluating untrusted markdown content with eval, allowing arbitrary JavaScript execution. The flaw affects every render path - the live preview window.eval and presentation mode plus HTML export the bundled WaveDrom.ProcessAll/ev...

CVE-2026-49493

Markdown Preview Enhanced before 0.8.28 parses Bitfield fenced code blocks with interpretJS, which evaluates the block content as code via vm.runInNewContext, allowing arbitrary code execution. A crafted markdown document containing a malicious bitfield code block executes attacker-controlled cod...

PT-2026-47025

Markdown Preview Enhanced before 0.8.28 parses WaveDrom diagrams by evaluating untrusted markdown content with eval, allowing arbitrary JavaScript execution. The flaw affects every render path - the live preview window.eval and presentation mode plus HTML export the bundled WaveDrom.ProcessAll/ev...

GHSA-9C47-M6QQ-7P4H Prototype Pollution in JSON5 via Parse Method

The parse method of the JSON5 library before and including version 2.2.1 does not restrict parsing of keys named proto, allowing specially crafted strings to pollute the prototype of the resulting object. This vulnerability pollutes the prototype of the object returned by JSON5.parse and not the...

CVE-2022-46175

JSON5 is an extension to the popular JSON file format that aims to be easier to write and maintain by hand e.g. for config files. The parse method of the JSON5 library before and including versions 1.0.1 and 2.2.1 does not restrict parsing of keys named proto, allowing specially crafted strings t...