vlife Authentication Bypass via Hardcoded JWT Signing Key

vlife through 2.0.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge JWTs using the hardcoded HS256 signing key in TokenUtil.

• Affected versions: vlife through 2.0.1
• Attackers can sign a token with superUser=true and arbitrary groupIds claims.
• Impact: gain super administrator access to any URL on vlife instances.