CVE-2024-43788

MEDIUM EPSS 55.1%
Published Aug 27, 20241y ago · Modified Jun 17, 20262w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Aug 27, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
6.1
Exploitability
2.8
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
55.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
webpack.jswebpack* <5.94.0

References 5

  • github.com https://github.com/webpack/webpack/commit/955e057abc6cc83cbc3fa1e1ef67a49758bf5a61
    Patch
  • github.com https://github.com/webpack/webpack/issues/18718#issuecomment-2326296270
  • github.com https://github.com/webpack/webpack/security/advisories/GHSA-4vvj-4cpr-p986
    ExploitVendor Advisory
  • research.securitum.com https://research.securitum.com/xss-in-amp4email-dom-clobbering
    ExploitThird Party Advisory
  • scnps.co https://scnps.co/papers/sp23_domclob.pdf
    ExploitMitigationTechnical DescriptionThird Party Advisory

Remediation

  • github.com https://github.com/webpack/webpack/commit/955e057abc6cc83cbc3fa1e1ef67a49758bf5a61
    Patch