Medium severity5.3NVD Advisory· Published Oct 30, 2023· Updated Jun 17, 2026
CVE-2023-42803
CVE-2023-42803
Description
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.
AI Insight
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Affected products
8cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*range: <=2.5.18
- cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:beta1:*:*:*:*:*:*
- (no CPE)range: <2.6.0-beta.2
- (no CPE)range: < 2.6.0-beta.2
Patches
Vulnerability mechanics
References
2- github.com/bigbluebutton/bigbluebutton/pull/15990nvdThird Party Advisory
- github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-w98f-6x8w-xhjcnvdThird Party Advisory
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