CVE-2022-39020

Name: CVE-2022-39020
Creator: NVD / NIST
Published: 2022-10-31T21:15:12.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2022-39020 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Multiple instances of XSS (stored and reflected) was found in the application. For example, features such as student assessment submission, file upload, news, ePortfolio and calendar event creation were found to be vulnerable to cross-site scripting. . EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

Multiple instances of XSS (stored and reflected) was found in the application. For example, features such as student assessment submission, file upload, news, ePortfolio and calendar event creation were found to be vulnerable to cross-site scripting.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.38%

30.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Schoolbox	Schoolbox	21.0.2

References

https://www.themissinglink.com.au/security-advisories/cve-2022-39020Third Party Advisory
https://www.themissinglink.com.au/security-advisories/cve-2022-39020Third Party Advisory

Timeline

Published: Oct 31, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39020?

How severe is CVE-2022-39020?

CVE-2022-39020 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39020?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39020?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST