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CVE-2022-39020

Cross-site scripting in Schoolbox version 21.0.2, by Schoolbox Pty Ltd

MEDIUM
6.1
CVSS Score
Published: October 31, 2022 at 08:06 PM UTC
Updated: June 17, 2026 at 04:57 AM UTC
1 product affected across 1 vendorSchoolbox

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: [email protected]
https://www.themissinglink.com.au/security-advisories/cve-2022-39020

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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