Stored Cross-Site Scripting Vulnerability in TCExam by TCExam Inc.
CVE-2021-20111

5.4MEDIUM

Key Information:

Vendor

Tecnick

Status
Tcexam
Vendor
CVE Published:
30 July 2021

What is CVE-2021-20111?

A stored cross-site scripting vulnerability has been identified in TCExam versions up to 14.8.1. The issue arises when valid files uploaded through tce_filemanager.php include filenames that begin with a period, causing them to be rendered as text/html. This allows an attacker with access to tce_filemanager.php to upload a malicious JavaScript payload, which is executed when another user accesses the file. This vulnerability poses a significant risk to user data and application integrity, emphasizing the need for proper input validation and security measures.

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

.