CVE-2026-25350: Reflected XSS in skygroup Miti

An attacker exploiting this Reflected XSS vulnerability can inject arbitrary JavaScript code into the Miti plugin's output. This code executes within the context of the victim's browser, allowing the attacker to steal cookies, session tokens, or redirect the user to a malicious website. Successful exploitation could lead to complete account takeover, defacement of the website, or the distribution of malware. The impact is particularly severe if the Miti plugin is used to handle sensitive user data or if the website has a large user base. While no specific real-world exploitation has been publicly reported, the ease of exploitation makes this a significant risk.

1. Reserved2026-02-02
2. Published2026-03-25
3. Modified2026-04-28
4. EPSS updated2026-04-02

The primary mitigation for CVE-2026-25350 is to immediately upgrade the Miti plugin to version 1.5.3 or later. If upgrading is not immediately feasible due to compatibility issues or testing requirements, consider implementing a Web Application Firewall (WAF) rule to filter out potentially malicious input. Specifically, look for patterns associated with JavaScript injection attempts, such as <script> tags or event handlers. Input validation and output encoding within the Miti plugin itself would also provide an additional layer of defense, though this requires code modification. After upgrading, verify the fix by attempting to inject a simple JavaScript payload (e.g., alert('XSS')) through a vulnerable endpoint and confirming that it is blocked.