An exposure of sensitive information vulnerability exists in TCExam <= 14.8.1. If a password reset request was made for an email address that was not registered with a user then we would be presented with an ‘unknown email’ error. If an email is given that is registered with a user then this error will not appear. A malicious actor could abuse this to enumerate the email addresses of

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-20113
• https://www.tenable.com/security/research/tra-2021-32