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Lack of data validation - Headers


In the source code the information of some HTTP headers is not being validated, so different values could be injected in order to achieve some XSS attack or compromise the integrity of the stored information.


Inject potentially dangerous characters into application fields.


Validate on the server side the types of data that are entered into different kind of fields in the application.


Authorized user from the Internet.

Expected Remediation Time

⌚ minutes.


Default score using CVSS 3.1. It may change depending on the context of the src.


  • Attack vector: N
  • Attack complexity: L
  • Privileges required: L
  • User interaction: N
  • Scope: U
  • Confidentiality: N
  • Integrity: L
  • Availability: N


  • Exploit code madurity: P
  • Remediation level: X
  • Report confidence: R


  • Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
  • Score:
    • Base: 4.3
    • Temporal: 3.9
  • Severity:
    • Base: Medium
    • Temporal: Low



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