The findOne function in TypeORM before 0.3.0 can either be supplied with a string or a FindOneOptions object. When input to the function is a user-controlled parsed JSON object, supplying a crafted FindOneOptions instead of an id string leads to SQL injection. NOTE: the vendor's position is that the user's application is responsible for input validation.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-33171
• typeorm/typeorm@0.2.45...0.3.0
• https://seclists.org/fulldisclosure/2022/Jun/51
• http://packetstormsecurity.com/files/168096/TypeORM-0.3.7-Information-Disclosure.html
• http://seclists.org/fulldisclosure/2022/Aug/7