What’s Vulnerable › Vulnerabilities

CVE-2021-40214

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-13 · updated 2026-06-17
• Weakness: CWE-79

Description

Gibbon v22.0.00 suffers from a stored XSS vulnerability within the wall messages component.

Affected products

• gibbonedu gibbon: 22.0.00

References

• https://gibbonedu.org/
• https://github.com/GibbonEdu/core/blob/v22.0.01/CHANGELOG.txt
• https://github.com/GibbonEdu/core/releases/download/v22.0.00/GibbonEduCore-InstallBundle.zip
• https://gibbonedu.org/
• https://github.com/GibbonEdu/core/blob/v22.0.01/CHANGELOG.txt
• https://github.com/GibbonEdu/core/releases/download/v22.0.00/GibbonEduCore-InstallBundle.zip

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