Universal cross-site scripting (UXSS)
Description
Universal cross-site scripting exploits client-side vulnerabilities, either through the browser or the extensions that the user enables, leading to the possibility of cross-side scripting exploitation or the execution of malicious code.
Impact
- Persistently inject malicious JavaScript code. - hijack any session that belongs open in the compromised browser. - Execute malicious code.
Recommendation
Keep your browsers and extensions up to date. Although this is not a definitive solution to the specific vulnerability, always use and install only what is necessary.
Threat
Unauthenticated attacker from the Internet with access to the victim's browser.
Expected Remediation Time
⌚ 600 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the src.
Base
- Attack vector: N
- Attack complexity: H
- Privileges required: N
- User interaction: N
- Scope: C
- Confidentiality: H
- Integrity: L
- Availability: L
Temporal
- Exploit code maturity: P
- Remediation level: U
- Report confidence: C
Result
- Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L/E:P/RL:U/RC:C
- Score:
- Base: 8.1
- Temporal: 7.7
- Severity:
- Base: High
- Temporal: High
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: H
- Attack Requirements: N
- Privileges required: N
- User interaction: N
- Confidentiality (VC): H
- Integrity (VI): L
- Availability (VA): L
- Confidentiality (SC): L
- Integrity (SI): L
- Availability (SA): L
Threat 4.0
- Exploit maturity: P
Result 4.0
- Vector string: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
- Score:
- CVSS-BT: 7.0
- Severity:
- CVSS-BT: High
Requirements
Fixes
