CVE-2014-9772

描述

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="jav&#x61;script:...">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](https://www.npmjs.com/search?q=xss%20filter&page=1&ranking=optimal) that provides similar functionality.

如何修補 CVE-2014-9772

要修補 CVE-2014-9772,請將受影響套件升級到下列已修補版本。

• —升級至 2.0.0 或更新版本

CVE-2014-9772 正在被利用嗎?

低 — EPSS 為 2.6%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.0.0

CVSS 分數

參考連結(7)

• ADVISORYgithub.com/advisories/GHSA-79mx-88w7-8f7q
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2014-9772
• PATCHgithub.com/chriso/validator.js
• WEBwww.openwall.com/lists/oss-security/2016/04/20/11
• WEBwww.securityfocus.com