Filtered by vendor Bigbluebutton
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Total
49 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2022-29169 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2022-27238 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 3.5 LOW | 5.4 MEDIUM |
| BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed. | |||||
| CVE-2022-26497 | 1 Bigbluebutton | 1 Greenlight | 2024-11-21 | 3.5 LOW | 5.4 MEDIUM |
| BigBlueButton Greenlight 2.11.1 allows XSS. A threat actor could have a username containing a JavaScript payload. The payload gets executed in the browser of the victim in the "Share room access" dialog if the victim has shared access to the particular room with the attacker previously. | |||||
| CVE-2022-23490 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | N/A | 4.3 MEDIUM |
| BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. This issue affects meetings with polls, where the attacker is a meeting participant. Subscribing to the current-poll collection does not update the client UI, but does give the attacker access to the contents of the collection, which include the individual poll responses. This issue is patched in version 2.4.0. There are no workarounds. | |||||
| CVE-2022-23488 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | N/A | 6.5 MEDIUM |
| BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are vulnerable to Insertion of Sensitive Information Into Sent Data. The moderators-only webcams lock setting is not enforced on the backend, which allows an attacker to subscribe to viewers' webcams, even when the lock setting is applied. (The required streamId was being sent to all users even with lock setting applied). This issue is fixed in version 2.4-rc-6. There are no workarounds. | |||||
| CVE-2021-4143 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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 | 2024-11-21 | 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-2020-29042 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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 | 2024-11-21 | 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-2020-28953 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 4.0 MEDIUM | 4.3 MEDIUM |
| In BigBlueButton before 2.2.29, a user can vote more than once in a single poll. | |||||
| CVE-2020-27642 | 1 Bigbluebutton | 1 Greenlight | 2024-11-21 | 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-2020-27613 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27612 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27611 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 7.5 HIGH | 7.3 HIGH |
| BigBlueButton through 2.2.28 uses STUN/TURN resources from a third party, which may represent an unintended endpoint. | |||||
| CVE-2020-27610 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27609 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27608 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27607 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27606 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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-2020-27605 | 1 Bigbluebutton | 1 Bigbluebutton | 2024-11-21 | 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." | |||||