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MSC-2025-7873
Good to know:
Date: September 8, 2025
has-ansi was compromised to include malicious code that targets browser-based web3 environments. The injected payload intercepts Ethereum and Solana wallet interactions, redirecting funds and approvals to attacker-controlled addresses. The compromise occurred after a maintainer’s account was accessed via phishing. We recommend removing the affected version from the codebase and using the latest version 6.0.2
Language: JS
Severity Score
Severity Score
Weakness Type (CWE)
Hidden Functionality
CWE-912CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | REQUIRED |
| Scope (S): | CHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | NONE |