CVE-2021-20115Network attack vector

Administrator session hijacking via unsanitized path output

Published Aug 5, 2021 · Updated Aug 3, 2024

Reflected XSS in Tecnick.com LTD TCExam 14.8.3 and earlier allows remote attackers to run script in an administrator's browser via a crafted link. The tce_filemanager.php handler returns the f, d, and dir path parameters in page output without properly validating or sanitizing their contents. An administrator must open the link; successful execution can expose the administrator's session or perform actions with that account's authority.

CVSS severity5.4
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Tecnick.com LTD TCExam 14.8.3 and earlier allows remote attackers to run script in an administrator's browser via a crafted link. The tce_filemanager.php handler returns the f, d, and dir path parameters in page output without properly validating or sanitizing their contents. An administrator must open the link; successful execution can expose the administrator's session or perform actions with that account's authority.

The record

CVE
CVE-2021-20115
Published
Aug 5, 2021
Updated
Aug 3, 2024
Vendor
Tecnick.com LTD
Product
TCExam
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 14.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tecnick.com LTD · TCExamversion=<= 14.8.3

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.4TenableCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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