CVE-2022-39020 json
Cross-site scripting in Schoolbox version 21.0.2, by Schoolbox Pty Ltd
published 2022-10-31 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-41566
- cvss
- 7.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Schoolbox Pty Ltd Schoolbox
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
themissinglink.com.au
/security-advisories/cve-2022-39020
third-party-advisory
Sources
- CVE List CVE-2022-39020
- NVD CVE-2022-39020
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