sanitize-html@0.1.4

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via the linkHref field handling. An attacker can execute arbitrary JavaScript by supplying a javascript: URL in an image widget's link URL field and having it rendered on the page. This affects users who can edit content and allows an attacker to run a script in viewers’ browsers, exposing session data and enabling unauthorized actions on the affected site.

Upgrade sanitize-html to version 2.17.4 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the xmp raw-text passthrough. An attacker can execute arbitrary JavaScript in the browser of another user by submitting specially crafted HTML content that is sanitized and then rendered as trusted output.

Upgrade sanitize-html to version 2.17.4 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the naughtyHref function. An attacker can execute arbitrary scripts in the context of a user's browser by crafting anchor tags with specially formatted href attributes that use different casings, whitespace, or hexadecimal encodings.

Upgrade sanitize-html to version 1.0.3 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to gather details about the file system structure and dependencies of the targeted server.

Upgrade sanitize-html to version 2.12.1 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.

Upgrade sanitize-html to version 2.7.1 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Access Restriction Bypass. Internationalized domain name (IDN) is not properly handled. This allows attackers to bypass hostname whitelist validation set by the allowedIframeHostnames option.

Upgrade sanitize-html to version 2.3.1 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Validation Bypass. There is no proper validation of the hostnames set by the allowedIframeHostnames option when the allowIframeRelativeUrls is set to true. This allows attackers to bypass the hostname whitelist for the iframe element.

Upgrade sanitize-html to version 2.3.2 or higher.

sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the sanitizeHtml function when the custom transformTags option is used. An attacker can inject and execute malicious code by providing crafted input that is not properly sanitized.

Upgrade sanitize-html to version 2.0.0 or higher.

sanitize-html is a library for scrubbing html input of malicious values.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) due to unescaped double quotes.

Entering the following:

<IMG SRC= onmouseover="alert('XSS');">

produces the following:

<img src="onmouseover="alert('XSS');"" />

Upgrade sanitize-html to version 1.2.3 or higher.

sanitize-html is a library for scrubbing html input of malicious values.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) attacks. If at least one nonTextTags tag is allowed, a malicious user may potentially conduct an XSS attack.

PoC:

var sanitizeHtml = require('sanitize-html');

var dirty = '!<textarea>&lt;/textarea&gt;<svg/onload=prompt`xs`&gt;</textarea>!';
var clean = sanitizeHtml(dirty, {
    allowedTags: [ 'textarea' ]
});

console.log(clean);

// !<textarea></textarea><svg/onload=prompt`xs`></textarea>!

Upgrade sanitize-html to version 1.11.4 or later.

Sanitization of HTML strings is not applied recursively to input, allowing an attacker to potentially inject script and other markup.

Source: Node Security Project

Upgrade sanitize-html to 1.4.3 or later