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nvd[email protected]NVD:CVE-2023-43797
HistoryOct 30, 2023 - 11:15 p.m.

CVE-2023-43797

2023-10-3023:15:08
CWE-79
web.nvd.nist.gov
bigbluebutton
virtual classroom
cross-site scripting
xss
vulnerability
versions 2.6.11
2.7.0-beta.3

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

0.001 Low

EPSS

Percentile

21.3%

BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.

Affected configurations

NVD
Node
bigbluebuttonbigbluebuttonRange<2.6.11
OR
bigbluebuttonbigbluebuttonMatch2.7.0alpha1
OR
bigbluebuttonbigbluebuttonMatch2.7.0alpha2
OR
bigbluebuttonbigbluebuttonMatch2.7.0alpha3
OR
bigbluebuttonbigbluebuttonMatch2.7.0beta1
OR
bigbluebuttonbigbluebuttonMatch2.7.0beta2

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

0.001 Low

EPSS

Percentile

21.3%

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