CVE-2026-16347: Possible brute-force attack in Mikrotik RouterOS, 8.8 rating βπ₯
MikroTik RouterOS contains a weakness in its API authentication handling that allows attackers to brute-force logins for unauthorized system access.
π https://t.co/YEHnt8kQdL
CSS Injection -> Sensitive Data Leak
POC ->
1. Found user-controlled CSS being rendered by the application.
2. Confirmed the input could influence CSS selectors or styles.
3. Used CSS behavior to infer sensitive page content.
4. Exfiltrated the inferred data through controlled requests.
Learning ->
- Never allow untrusted users to inject CSS into sensitive pages.
- Treat CSS injection as a potential data-leak primitive, not just a visual issue.
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