Attacker Value
Very High
(1 user assessed)
Exploitability
Very High
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
3

CVE-2021-43141

Disclosure Date: November 03, 2021 •
CVE-2021-43141 CVSS v3 Base Score: 6.1
Exploited in the Wild
Reported by JK604080148
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Add MITRE ATT&CK tactics and techniques that apply to this CVE.
Execution
Techniques
Validation
Validated
Validated
Privilege Escalation
Techniques
Validation
Validated
Validated
Validated

Description

Cross Site Scripting (XSS) vulnerability exists in Sourcecodester Simple Subscription Website 1.0 via the id parameter in plan_application.

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1
Ratings
  • Attacker Value
    Very High
  • Exploitability
    Very High
Easy to weaponizeGives privileged accessVulnerable in default configuration
Technical Analysis

CVE-2021-43141

Vendor

Description:

Cross-Site Scripting (XSS) vulnerability exists in Sourcecodester Simple Subscription Website 1.0 via the id parameter in plan_application and users_application.
The attacker can use SQL – Injection bypass Authentication method to log in to the admin account of the system and then he can exploit this account by using XSS-Stored to attack and exploit the account, and then he can use remote requests to hijack PHPSESSID and can exploit this account and users into it by using an XSS-Stored method!
Conclusion: The status of this system is CRITICAL and awful, and this must be stopped immediately for distribution!

Action:

Reproduce:

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Proof and exploit:

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CVSS V3 Severity and Metrics
Base Score:
6.1 Medium
Impact Score:
2.7
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Changed
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • simple subscription website project

Products

  • simple subscription website 1.0

Exploited in the Wild

Reported by:

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis