CVE-2021-40214 json
Gibbon v22.0.00 suffers from a stored XSS vulnerability within the wall messages component.
published 2021-09-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27399
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
Gibbon v22.0.00 suffers from a stored XSS vulnerability within the wall messages component.
Exploit prediction
0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
gibbonedu.org
/
product
-
github.com
/GibbonEdu/core/releases/download/v22.0.00/GibbonEduCore-InstallBundle.zip
third-party-advisory
-
github.com
/GibbonEdu/core/blob/v22.0.01/CHANGELOG.txt
third-party-advisory
Sources
- CVE List CVE-2021-40214
- NVD CVE-2021-40214
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