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CVE-2021-20116

Published: Aug 5, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-79
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.9%
Top 43.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

A reflected cross-site scripting vulnerability exists in TCExam <= 14.8.4. The paths provided in the f, d, and dir parameters in tce_select_mediafile.php were not properly validated and could cause reflected XSS via the unsanitized output of the path supplied. An attacker could craft a malicious link which, if triggered by an administrator, could result in the attacker hijacking the victim's session or performing actions on their behalf.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

tcexamtecnick
Library
OSS Libraries / generic-library
TCExamNicola Asuni
On-prem
Web & CMS Plugins / cms-core
TCExamn/a
tecnickindividual-devOSS Librariesaka tcpdf, tcexam, aiocp
nicola asuniindividual-devWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.tenable.com/security/research/tra-2021-32
tenable.com
https://nvd.nist.gov/vuln/detail/CVE-2021-20116&#13;
nvd.nist.gov

Timeline

Published
Aug 5, 2021
Last Updated
Nov 21, 2024

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