Cross-site Scripting (XSS) - Stored in yetiforcecompany/yetiforcecrm

The XSS vulnerability in YetiForceCRM allows an attacker to inject arbitrary JavaScript code into the application. This code can then be executed in the context of a victim's browser when they visit a compromised page. An attacker could leverage this to steal session cookies, redirect users to malicious websites, or deface the application. The impact is particularly severe because XSS vulnerabilities can be exploited to compromise user accounts with elevated privileges, potentially granting the attacker access to sensitive data and control over the CRM system. Successful exploitation could lead to unauthorized access to customer data, financial records, and other confidential information stored within the CRM.

Organizations using YetiForceCRM versions 6.4.0 and earlier are at risk, particularly those with sensitive customer data stored within the CRM. Shared hosting environments where multiple users share the same server instance are also at increased risk, as a vulnerability in one user's account could potentially compromise other accounts on the same server.

• php: Examine application logs for suspicious JavaScript code being injected into user input fields. Use a WAF to detect and block XSS payloads.

grep -r 'alert("XSS")' /var/www/yetiforcecrm/includes/install/

• generic web: Monitor HTTP response headers for signs of injected JavaScript. Use browser developer tools to inspect network traffic for unexpected script tags.

curl -I https://your-yetiforcecrm-instance/ | grep -i content-security-policy

1. 2022-08-22Disclosure

   disclosure

1. 予約済み2022-08-18
2. 公開日2022-08-22
3. 更新日2024-08-03
4. EPSS 更新日2026-04-02

The primary mitigation for CVE-2022-2890 is to upgrade YetiForceCRM to version 6.4.0 or later, which contains the fix. If immediate upgrading is not possible, consider implementing input validation and output encoding on user-supplied data to reduce the attack surface. Web Application Firewalls (WAFs) configured to detect and block XSS payloads can provide an additional layer of defense. Regularly scan the application for XSS vulnerabilities using automated tools.