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CVE-2023-42803

BigBlueButton Unrestricted File Upload vulnerability

CVSS 5.3 MEDIUMEPSS 0.5%CWE-434
Vexday Risk Score
13Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 5.3EPSS 0.5%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
30 oct 2023Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.2 is vulnerable to unrestricted file upload, where the insertDocument API call does not validate the given file extension before saving the file, and does not remove it in case of validation failures. BigBlueButton 2.6.0-beta.2 contains a patch. There are no known workarounds.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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