HTML2Markdown is a Javascript implementation for converting HTML to Markdown text. All available versions contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.

Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.

A vulnerability, which was classified as problematic, was found in yzane vscode-markdown-pdf 1.5.0. This affects an unknown part. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as problematic, has been found in yzane vscode-markdown-pdf 1.5.0. Affected by this issue is some unknown functionality of the component Markdown File Handler. The manipulation leads to pathname traversal. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

Cross-Site Scripting (XSS) vulnerability in the Django MarkdownX project, affecting version 4.0.2. An attacker could store a specially crafted JavaScript payload in the upload functionality due to lack of proper sanitisation of JavaScript elements.

The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue.

Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.

markdown-pdf version 11.0.0 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate the Markdown content entered by the user.

Cross Site Scripting vulnerability found in Markdown Edit allows a remote attacker to execute arbitrary code via the edit parameter of the webpage.

A vulnerability was found in JP1016 Markdown-Electron and classified as critical. Affected by this issue is some unknown functionality. The manipulation leads to code injection. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. VDB-221738 is the identifier assigned to this vulnerability.