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Server side cross-site scripting


It is possible to inject JavaScript into application fields, with the goal of having the server execute malicious code before rendering user input. This allows a remote attacker to compromise internal server files, make requests on behalf of the server or perform a port scan.


  • Extracting information from the server. - Execute actions on the server or on behalf of the server.


Properly sanitize user input, before executing it on the server side.


Unprivileged attacker from the internet impersonating the application.

Expected Remediation Time

⌚ 45 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: C
  • Confidentiality: L
  • Integrity: N
  • Availability: N


  • Exploit code madurity: H
  • Remediation level: U
  • Report confidence: R


  • Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:H/RL:U/RC:R
  • Score:
    • Base: 5.0
    • Temporal: 4.8
  • Severity:
    • Base: Medium
    • Temporal: Medium



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