CVE-2025-6563Public exploit

Cross-site scripting via unchecked dst scheme

Published Jul 3, 2025 · Updated Jul 3, 2025

Cross-site scripting in MikroTik RouterOS hotspot before 7.19.2 allows remote attackers to execute script in a victim's browser. The hotspot login handler accepts a javascript scheme in dst and redirects an authenticated browser to that value without restricting it to HTTP or HTTPS. A victim must reach the crafted hotspot URL and either log in or be logged into the attacker's account before script executes in the hotspot origin.

CVSS severity4.8
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in MikroTik RouterOS hotspot before 7.19.2 allows remote attackers to execute script in a victim's browser. The hotspot login handler accepts a javascript scheme in dst and redirects an authenticated browser to that value without restricting it to HTTP or HTTPS. A victim must reach the crafted hotspot URL and either log in or be logged into the attacker's account before script executes in the hotspot origin.

The record

CVE
CVE-2025-6563
Published
Jul 3, 2025
Updated
Jul 3, 2025
Vendor
MikroTik
Product
RouterOS
Classifications
CWE-20, T1189
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.19.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

MikroTik · RouterOSversion=0 <7.19.2

Published CVSS scores

4.8GitHub Advisory DatabaseCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo