GHSA-79mx-88w7-8f7q

Source

https://github.com/advisories/GHSA-79mx-88w7-8f7q

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/11/GHSA-79mx-88w7-8f7q/GHSA-79mx-88w7-8f7q.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-79mx-88w7-8f7q

Aliases

CVE-2014-9772

Published

2018-11-06T23:12:49Z

Modified

2023-11-08T03:57:47.438170Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

XSS Filter Bypass via Encoded URL in validator

Details

Versions of validator prior to 2.0.0 contained an xss filter method that is affected by several filter bypasses. This may result in a cross-site scripting vulnerability.

Proof of Concept

The xss() function removes the word "javascript" when contained inside an attribute.

However, it does not properly handle cases where characters have been hex-encoded.

As a result, it is possible to build an input that bypasses the filter but which the browser will accept as valid JavaScript.

For example: <a href="javascript:...">abc</a> will render as: <a href="javascript:...">abc</a>

Recommendation

The package author has decided to remove the xss filter functionality in the latest version of this module. If this feature is not currently being used, you are not affected by the vulnerability. If it is being used, updating to the latest version of the module will break your application.

In order for affected users to mitigate this vulnerability, it is necessary to use an alternative package that provides similar functionality.

Database specific

{
    "nvd_published_at": null,
    "severity": "MODERATE",
    "github_reviewed_at": "2020-06-16T21:22:15Z",
    "cwe_ids": [
        "CWE-79"
    ],
    "github_reviewed": true
}

References

Affected packages

npm / validator

Package

Name: validator; View open source insights on deps.dev
Purl: pkg:npm/validator

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.0.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/11/GHSA-79mx-88w7-8f7q/GHSA-79mx-88w7-8f7q.json"