Vulnerability Fixation
Unencrypted Transmission Of Sensitive User Data

Unencrypted Transmission Of Sensitive User Data

This is one of the critical vulnerabilities that can expose users to data breaches and fraud is the sending of sensitive information, such as credit card details, passwords or personal identification to a payment gateway in an unencrypted format i.e., in plain text.

Transmitting sensitive data in plain text allows attackers to intercept and read it easily through network sniffing or man-in-the-middle attacks. To prevent this, all sensitive communications should be encrypted using HTTPS with strong SSL/TLS configurations, ensuring data confidentiality and integrity during transmission.

Vulnerability

  • When applications use unsecured HTTP instead of HTTPS or fail to apply encryption, sensitive data travels in plain text.
  • This allows attackers or unauthorized parties to intercept and read confidential information such as payment details or login credentials.
Impact

  • Data Interception: Attackers can capture unencrypted traffic using man-in-the-middle (MITM) attacks.
  • Financial Fraud: Exposed payment or login data can be used for unauthorized transactions.
  • Regulatory Penalties: Violations of GDPR, PCI DSS, or similar standards can lead to fines.
  • User Trust Loss: Customers may abandon transactions due to browser “Not Secure” warnings.
Solution

  • Enforce HTTPS: Use HTTPS for all pages and APIs, especially payment or login endpoints.
  • Use Valid SSL/TLS Certificates: Obtain and renew trusted certificates from recognized CAs.
  • Enable Strong Encryption: Support only TLS 1.2+ and disable outdated SSL/TLS versions.
  • Encrypt Data End-to-End: Protect sensitive data during transmission and storage.

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