CVE-2024-43788 DOM Clobbering Gadget found in Webpack's AutoPublicPathRuntimeModule that leads to Cross-site Scripting (XSS)

2024-08-2717:07:16

CWE-79

GitHub_M

github.com

webpack

autopublicpathruntimemodule

dom clobbering

xss

vulnerability

javascript

cross-site scripting

webpack-generated files

upgrade

CVSS3

6.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

26.0%

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset. The webpack developers have discovered a DOM Clobbering vulnerability in Webpack’s AutoPublicPathRuntimeModule. The DOM Clobbering gadget in the module can lead to cross-site scripting (XSS) in web pages where scriptless attacker-controlled HTML elements (e.g., an img tag with an unsanitized name attribute) are present. Real-world exploitation of this gadget has been observed in the Canvas LMS which allows a XSS attack to happen through a javascript code compiled by Webpack (the vulnerable part is from Webpack). DOM Clobbering is a type of code-reuse attack where the attacker first embeds a piece of non-script, seemingly benign HTML markups in the webpage (e.g. through a post or comment) and leverages the gadgets (pieces of js code) living in the existing javascript code to transform it into executable code. This vulnerability can lead to cross-site scripting (XSS) on websites that include Webpack-generated files and allow users to inject certain scriptless HTML tags with improperly sanitized name or id attributes. This issue has been addressed in release version 5.94.0. All users are advised to upgrade. There are no known workarounds for this issue.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:webpack:webpack:*:*:*:*:*:*:*:*"
    ],
    "vendor": "webpack",
    "product": "webpack",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "5.94.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]