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.
Requirements
173 - Discard unsafe inputsFixes
Score
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
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