Horizon Alert
Summary of the vulnerability and why it matters
This critical vulnerability impacts a WordPress plugin used for appointment booking. It allows unauthenticated attackers, knowing a customer's email or phone number, to bypass security measures, brute-force a one-time code, and gain full access to a customer's account, bookings, and personal data.
- Attackers bypass login security.
- Protects customer accounts and data.
- Confirm plugin relevance and exposure.
Attack Path
How an attacker could exploit the issue
An attacker can bypass authentication by exploiting a race condition in the OTP verification process. By knowing a target customer's email or phone number, an unauthenticated attacker can send concurrent requests to the authentication endpoint. This circumvents the lockout mechanism, allowing them to brute-force the one-time password and gain full access to the targeted customer's account, including their bookings and personal data.
- Requires knowledge of customer contact information.
- Exploits a time-of-check to time-of-use race condition.
- Allows full account takeover and data access.
Live Threat
Current exploitation, exposure, and threat context
Unauthenticated attackers could bypass authentication to gain full access to a targeted customer's LatePoint account. This is possible by exploiting a race condition in the OTP verification process, allowing brute-force attempts to succeed when the attacker knows the customer's email or phone number. The vulnerability affects how the system tracks OTP verification attempts, creating a window for concurrent requests to bypass the intended lockout.
- Customer account data.
- Bypassing OTP verification.
- Unauthorized account access.
Operational Fix
Recommended remediation, mitigation, and detection steps
For this WordPress plugin vulnerability, application owners or platform teams responsible for the WordPress environment are likely to act first. The initial practical move is to identify all instances of the affected plugin, determine its reachability and business criticality, confirm the accountable owner, and then plan remediation based on risk.
- Identify affected plugin instances.
- Verify public reachability and business impact.
- Plan remediation based on risk assessment.
