Lack of data validation - HTML code

Description

It is possible to inject valid HTML code, which could be interpreted by the site receiving the JSON response.

Impact

- Insert character sequences whose semantics result in the creation of new HTML elements, log file injection, remote command execution or insecure file fetching.
- Create delivery requests for non-existent QR codes, since the idQR field accepts text strings with random characters.

Recommendation

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

Threat

Unauthorized attacker on the Internet.

Expected Remediation Time

⌚ 90 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: N
User interaction: N
Scope: U
Confidentiality: N
Integrity: L
Availability: N

Temporal

Exploit code maturity: X
Remediation level: X
Report confidence: X

Result

Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X
Score:

Base: 5.3
Temporal: 5.3

Severity:

Base: Medium
Temporal: Medium

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: N
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: X

Result 4.0

Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
Score:

CVSS-BT: 6.9

Severity:

CVSS-BT: Medium

Requirements

Fixes

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