What is CVE-2020-5751?

CVE-2020-5751 is a medium-severity vulnerability in Tecnick Tcexam, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-07.

How severe is CVE-2020-5751?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Tecnick Tcexam

CVE-2020-5751

Insufficient output sanitization in TCExam 14.2.2 allows a remote, authenticated attacker to conduct persistent cross-site scripting (XSS) attacks by creating a crafted operator.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-05-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Tecnick Tcexam — versions 14.2.2
Tcexam — versions 14.2.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.tenable.com/security/research/tra-2020-31 (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-5751?: CVE-2020-5751 is a medium-severity vulnerability in Tecnick Tcexam, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-07.
How severe is CVE-2020-5751?: Medium severity. CVSS v3 base score is 5.4 out of 10.