Reflected XSS Vulnerability in Gibbon Application Version 22
CVE-2021-40492

6.1MEDIUM

Key Information:

Vendor

Gibbonedu

Status
Gibbon
Vendor
CVE Published:
3 September 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-40492?

A reflected Cross-Site Scripting (XSS) vulnerability has been identified in version 22 of the Gibbon application. Exploitation of this vulnerability allows an attacker to inject and execute arbitrary JavaScript code through input parameters such as gibbonCourseClassID, gibbonPersonID, subpage, currentDate, or allStudents, affecting multiple pages of the application. This could potentially lead to unauthorized actions and compromise user data and session integrity.

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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-2021-40492
Created by 5qu1n7

References

https://gibbonedu.org/
x_refsource_MISC
https://github.com/5qu1n7/CVE-2021-40492
x_refsource_MISC

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

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