CVE-2021-40492

MEDIUM
Published Sep 3, 20214y ago · Modified Jun 17, 20262w ago
6.1 CVSS 3.1
Medium
Find Similar
Published Sep 3, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

A reflected XSS vulnerability exists in multiple pages in version 22 of the Gibbon application that allows for arbitrary execution of JavaScript (gibbonCourseClassID, gibbonPersonID, subpage, currentDate, or allStudents to index.php).

CVSS Details

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

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
gibbonedugibbon22.0.00any

References 2

  • gibbonedu.org https://gibbonedu.org/
    Vendor Advisory
  • github.com https://github.com/5qu1n7/CVE-2021-40492
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.