Filtered by vendor Bigbluebutton
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Total
42 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2022-29232 | 1 Bigbluebutton | 1 Bigbluebutton | 2022-06-09 | 4.0 MEDIUM | 6.5 MEDIUM |
| BigBlueButton is an open source web conferencing system. Starting with version 2.2 and prior to versions 2.3.9 and 2.4-beta-1, an attacker can circumvent access controls to obtain the content of public chat messages from different meetings on the server. The attacker must be a participant in a meeting on the server. BigBlueButton versions 2.3.9 and 2.4-beta-1 contain a patch for this issue. There are currently no known workarounds. | |||||
| CVE-2022-29169 | 1 Bigbluebutton | 1 Bigbluebutton | 2022-06-09 | 5.0 MEDIUM | 7.5 HIGH |
| BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory. | |||||
| CVE-2021-4143 | 1 Bigbluebutton | 1 Bigbluebutton | 2022-01-25 | 4.3 MEDIUM | 6.1 MEDIUM |
| Cross-site Scripting (XSS) - Generic in GitHub repository bigbluebutton/bigbluebutton prior to 2.4.0. | |||||
| CVE-2020-29043 | 1 Bigbluebutton | 1 Bigbluebutton | 2021-07-21 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name. | |||||
| CVE-2020-27610 | 1 Bigbluebutton | 1 Bigbluebutton | 2021-07-21 | 5.0 MEDIUM | 7.5 HIGH |
| The installation procedure in BigBlueButton before 2.2.28 (or earlier) exposes certain network services to external interfaces, and does not automatically set up a firewall configuration to block external access. | |||||
| CVE-2020-28953 | 1 Bigbluebutton | 1 Bigbluebutton | 2021-07-21 | 4.0 MEDIUM | 4.3 MEDIUM |
| In BigBlueButton before 2.2.29, a user can vote more than once in a single poll. | |||||
| CVE-2020-29042 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-11-29 | 4.3 MEDIUM | 3.7 LOW |
| An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code. | |||||
| CVE-2020-28954 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-11-29 | 5.0 MEDIUM | 5.3 MEDIUM |
| web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name. | |||||
| CVE-2020-27604 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-30 | 4.0 MEDIUM | 6.5 MEDIUM |
| BigBlueButton before 2.3 does not implement LibreOffice sandboxing. This might make it easier for remote authenticated users to read the API shared secret in the bigbluebutton.properties file. With the API shared secret, an attacker can (for example) use api/join to join an arbitrary meeting regardless of its guestPolicy setting. | |||||
| CVE-2020-27605 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 7.5 HIGH | 9.8 CRITICAL |
| BigBlueButton through 2.2.28 uses Ghostscript for processing of uploaded EPS documents, and consequently may be subject to attacks related to a "schwache Sandbox." | |||||
| CVE-2020-27606 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 5.0 MEDIUM | 5.3 MEDIUM |
| BigBlueButton before 2.2.28 (or earlier) does not set the secure flag for the session cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session. | |||||
| CVE-2020-27607 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 6.4 MEDIUM | 6.5 MEDIUM |
| In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to stop sending audio data to the server, and thus a modified server could store the audio data and/or transmit it to one or more meeting participants or other third parties. | |||||
| CVE-2020-27603 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 5.0 MEDIUM | 7.5 HIGH |
| BigBlueButton before 2.2.27 has an unsafe JODConverter setting in which LibreOffice document conversions can access external files. | |||||
| CVE-2020-25820 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 4.0 MEDIUM | 6.5 MEDIUM |
| 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-2020-27608 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 4.3 MEDIUM | 6.1 MEDIUM |
| 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-2020-27609 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 5.0 MEDIUM | 5.3 MEDIUM |
| BigBlueButton through 2.2.28 records a video meeting despite the deactivation of video recording in the user interface. This may result in data storage beyond what is authorized for a specific meeting topic or participant. | |||||
| CVE-2020-27612 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 4.0 MEDIUM | 4.3 MEDIUM |
| Greenlight in BigBlueButton through 2.2.28 places usernames in room URLs, which may represent an unintended information leak to users in a room, or an information leak to outsiders if any user publishes a screenshot of a browser window. | |||||
| CVE-2020-27613 | 1 Bigbluebutton | 1 Bigbluebutton | 2020-10-29 | 4.6 MEDIUM | 8.4 HIGH |
| The installation procedure in BigBlueButton before 2.2.28 (or earlier) uses ClueCon as the FreeSWITCH password, which allows local users to achieve unintended FreeSWITCH access. | |||||
| CVE-2020-27642 | 1 Bigbluebutton | 1 Greenlight | 2020-10-27 | 4.3 MEDIUM | 6.1 MEDIUM |
| A cross-site scripting (XSS) vulnerability exists in the 'merge account' functionality in admins.js in BigBlueButton Greenlight 2.7.6. | |||||
| CVE-2020-26163 | 1 Bigbluebutton | 1 Greenlight | 2020-10-15 | 6.8 MEDIUM | 8.8 HIGH |
| 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. | |||||