Stored Cross-Site Scripting Vulnerability in TCExam by E-licker
CVE-2021-20112

5.4MEDIUM

Key Information:

Vendor

Tecnick

Status
Tcexam
Vendor
CVE Published:
30 July 2021

What is CVE-2021-20112?

A stored cross-site scripting vulnerability exists in TCExam versions up to 14.8.1. This vulnerability allows valid files uploaded through tce_select_mediafile.php, specifically those whose filenames start with a period, to be treated as text/html. Consequently, an attacker gaining access to this file upload functionality could deliver a malicious JavaScript payload. When another user accesses the affected file, the payload executes, potentially compromising user data and application integrity.

Affected Version(s)

TCExam 14.8.1

References

https://www.tenable.com/security/research/tra-2021-32
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-20112 : Stored Cross-Site Scripting Vulnerability in TCExam by E-licker