How severe is CVE-2021-20116?

CVE-2021-20116 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-20116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20116?

CVE-2021-20116 affects Tecnick Tcexam. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20116?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20116 published?

CVE-2021-20116 was published on 2021-08-05 and last updated on 2026-06-17.

CVE-2021-20116

CVE-2021-20116 is a medium-severity vulnerability in Tecnick Tcexam with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Tecnick Tcexam
Published: 2021-08-05
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-20116?: 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.
How severe is CVE-2021-20116?: CVE-2021-20116 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-20116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20116?: CVE-2021-20116 affects Tecnick Tcexam. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20116 published?: CVE-2021-20116 was published on 2021-08-05 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:tecnick:tcexam:*:*:*:*:*:*:*:*

More vulnerabilities in Tecnick Tcexam

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CVE-2012-4237 — Medium (CVSS 6.8): Multiple SQL injection vulnerabilities in TCExam before 11.3.008 allow remote authenticated users with level 5 or…
CVE-2010-2153 — Medium (CVSS 6.8): Unrestricted file upload vulnerability in admin/code/tce_functions_tcecode_editor.php in TCExam 10.1.006 and 10.1.007…
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CVE-2021-20115 — Medium (CVSS 6.1): A reflected cross-site scripting vulnerability exists in TCExam <= 14.8.3. The paths provided in the f, d, and dir…

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