Description

Included in the server error responses is unvalidated user input containing special characters, which can lead to vulnerabilities such as XSS.

Impact

Inject special characters in server responses.

Recommendation

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

Threat

Authenticated attacker from the Internet.

Expected Remediation Time

⌚ 60 minutes.

Score

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

Base

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

Temporal

• Exploit code maturity: U
• Remediation level: X
• Report confidence: R

Result

• Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:X/RC:R
• Score:
• Base: 4.3
• Temporal: 3.8
• Severity:
• Base: Medium
• Temporal: Low

Score 4.0

Default score using CVSS 4.0. It may change depending on the context of the src.

Base 4.0

• Attack vector: N
• Attack complexity: L
• Attack Requirements: N
• Privileges required: L
• User interaction: N
• Confidentiality (VC): N
• Integrity (VI): L
• Availability (VA): N
• Confidentiality (SC): N
• Integrity (SI): N
• Availability (SA): N

Threat 4.0

• Exploit maturity: U

Result 4.0

• Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
• Score:
• CVSS-BT: 1.3
• Severity:
• CVSS-BT: Low

Requirements

• 173.Discard unsafe inputs
• 320.Avoid client-side control enforcement
• 342.Validate request parameters

Fixes

• Java
• Elixir
• C-Sharp
• Go
• Ruby
• Dart
• PHP
• Scala
• Python
• TypeScript

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