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CVE-2024-42366 Cross site scripting

Significant
Remediate Within one Month

CVE Information

Original CVE data

Published:
Updated:

VRCX is an assistant/companion application for VRChat. In versions prior to 2024.03.23, a CefSharp browser with over-permission and cross-site scripting via overlay notification can be combined to result in remote command execution. These vulnerabilities are patched in VRCX 2023.12.24. In addition to the patch, VRCX maintainers worked with the VRC team and blocked the older version of VRCX on the VRC's API side. Users who use the older version of VRCX must update their installation to continue using VRCX.

CWE: CWE-79
CVSS v2-
CVSS v39
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
References
https://github.com/vrcx-team/VRCX/security/advisories/GHSA-j98g-mgjm-wqph
https://github.com/vrcx-team/VRCX/commit/cd2387aa3289f936ce60049121c24b0765bd4180
Affected Vendors

Vrcx-team - (1)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Cross site scripting

CVSS Scores as calculated by PRIOnengine
CVSS v24.9
AV:N/AC:M/AU:S/C:N/I:P/A:P
CVSS v35.4
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
MITRE CWE Top 25

Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs

Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

-

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1566.002 - Phishing (Spearphishing Link)
T1566 - Phishing
T1539 - Steal Web Session Cookie
T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1190 - Exploit Public-Facing Application
T1189 - Drive-by Compromise
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.7 - Cross Site Scripting

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-8 - Cross Site Scripting