CVE-2020-27608: Improper Neutralization of Input During Web Page Generation

In BigBlueButton before 2.2.28 or earlier, uploaded presentations are sent to clients without a Content-Type header, which allows XSS, as demonstrated by a .png file extension for an HTML document...

CVE-2020-27602: Improper Neutralization of Special Elements in Output Used by a Downstream Component

BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken...

CVE-2020-27603: Undefined Security Weakness

BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files...

BigBlueButton 2.2.25 File Disclosure / Server-Side Request Forgery

Advisory: Arbitrary File Disclosure and Server-Side Request Forgery in BigBlueButton RedTeam Pentesting discovered a vulnerability in the BigBlueButton web conferencing system which allows participants of a conference with permissions to upload presentations to read arbitrary files from the file...

PT-2020-16225

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 2.2.7 Description The issue allows remote authenticated users to read local files and conduct Server-Side Request Forgery SSRF attacks. This is achieved by uploading an Office document that contains a crafted UR...

CVE-2020-25820: Server-Side Request Forgery (SSRF)

BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field...

CVE-2020-26163

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

CVE-2020-26163

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

Design/Logic Flaw

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

CVE-2020-26163

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

CVE-2020-26163

BigBlueButton Greenlight before 2.5.6 is affected by an HTTP header (Host and Origin) input issue that enables account takeover when a user clicks a spoofed password‑reset link. Root cause: header handling allows spoofing of origins/hosts. Impact: potential account compromise; attacks require net...

CVE-2020-26163

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

PT-2020-16320

Name of the Vulnerable Software and Affected Versions BigBlueButton Greenlight versions prior to 2.5.6 Description The issue allows HTTP header attacks, specifically targeting the Host and Origin headers, which can lead to account takeover. This can occur when a victim follows a spoofed...

CVE-2020-26163: Undefined Security Weakness

BigBlueButton Greenlight before 2.5.6 allows HTTP header Host and Origin attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link...

CVE-2020-12443

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...

CVE-2020-12443

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...

Directory traversal

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...

CVE-2020-12443

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...

CVE-2020-12443

BigBlueButton before 2.2.6 allows remote attackers to read arbitrary files because the presfilename lowercase value can be a .pdf filename while the presFilename mixed case value has a ../ sequence. This can be leveraged for privilege escalation via a directory traversal to...

CVE-2020-12443

CVE-2020-12443 affects BigBlueButton before 2.2.6, allowing remote read of files via directory traversal: presfilename (lowercase) can be a .pdf while presFilename (mixed case) contains ../, enabling traversal to bigbluebutton.properties. The issue ties to an ineffective mitigation for CVE-2020-1...