Dot CMS Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2022-35740 - Vulnerability Database

Dot CMS

Dot CMS Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2022-35740

Medium

Reference: CVE-2022-35740

NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2022-35740

Title: Dot CMS Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability

Overview:

dotCMS before 22.06 allows remote attackers to bypass intended access control and obtain sensitive information by using a semicolon in a URL to introduce a matrix parameter. (This is also fixed in 5.3.8.12 21.06.9 and 22.03.2 for LTS users.) Some Java application frameworks including those used by Spring or Tomcat allow the use of matrix parameters: these are URI parameters separated by semicolons. Through precise semicolon placement in a URI it is possible to exploit this feature to avoid dotCMS39s path-based XSS prevention (such as quotrequire loginquot filters) and consequently access restricted resources. For example an attacker could place a semicolon immediately before a / character that separates elements of a filesystem path. This could reveal file content that is ordinarily only visible to signed-in users. This issue can be chained with other exploit code to achieve XSS attacks against dotCMS.