CVE-2025-6563: mikrotik routeros Improper Input Validation

Vulnerability summary

CVE-2025-6563 is a medium (CVSS 4.8) Improper Input Validation vulnerability in mikrotik routeros. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 53.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 03-07-2025
   PublishedVulnerability first disclosed.
2. 03-07-2025
   Last modifiedVulnerability information updated.

Description

A cross-site scripting vulnerability is present in the hotspot of MikroTik's RouterOS on versions below 7.19.2. An attacker can inject the `javascript` protocol in the `dst` parameter. When the victim browses to the malicious URL and logs in, the XSS executes. The POST request used to login, can also be converted to a GET request, allowing an attacker to send a specifically crafted URL that automatically logs in the victim (into the attacker's account) and triggers the payload.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.