DSA Study Hub: Unprotected Login Tokens Exposed in Cookies

Summary

The DSA Study Hub login system stored sensitive information in a way that could be accessed by unauthorized users. This could have allowed hackers to access user accounts and sensitive data without needing a password. The vulnerability has been fixed, but users should still be cautious and use strong passwords and two-factor authentication to protect their accounts.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
toxicbishop	dsa_study_hub	<= 2026-02-21	–

Original title

DSA Study Hub is an interactive educational web application. Prior to commit d527fba, the user authentication system in server/routes/auth.js was found to be vulnerable to Insufficiently Protected ...

Original description

DSA Study Hub is an interactive educational web application. Prior to commit d527fba, the user authentication system in server/routes/auth.js was found to be vulnerable to Insufficiently Protected Credentials. Authentication tokens (JWTs) were stored in HTTP cookies without cryptographic protection of the payload. This issue has been patched via commit d527fba.

nvd CVSS3.1 8.1

Vulnerability type

CWE-311 Missing Encryption of Sensitive Data

CWE-522 Insufficiently Protected Credentials