Persistent Cross-Site Scripting in Savsoft Quiz 5.0
CVE-2021-47962

5.1MEDIUM

Key Information:

Vendor

Savsofts

Status
Savsoft Quiz
Vendor
CVE Published:
15 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47962?

Savsoft Quiz 5.0 is vulnerable to a persistent cross-site scripting flaw in the user account settings page. This security issue allows authenticated attackers to inject harmful HTML and JavaScript code into user profile fields via the edit_user endpoint. As a result, malicious script payloads can execute in the browsers of users accessing the compromised profiles, potentially leading to unauthorized actions and data exposure.

Affected Version(s)

Savsoft Quiz 5.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47962 - Proof of Concept

References

https://www.exploit-db.com/exploits/49825
exploit
https://savsoftquiz.com
product
https://github.com/savsofts/savsoftquiz_v5
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

strider
.