Search criteria
96 vulnerabilities found for bigbluebutton by bigbluebutton
CVE-2025-61602 (GCVE-0-2025-61602)
Vulnerability from nvd – Published: 2025-10-09 20:40 – Updated: 2025-10-10 14:30
VLAI?
Title
BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId
Summary
BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2025-61601 (GCVE-0-2025-61601)
Vulnerability from nvd – Published: 2025-10-09 20:29 – Updated: 2025-10-15 19:47
VLAI?
Title
BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation
Summary
BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2025-55200 (GCVE-0-2025-55200)
Vulnerability from nvd – Published: 2025-10-09 18:51 – Updated: 2025-10-09 19:08
VLAI?
Title
BigBlueButton vulnerable to Stored XSS via name of user at Shared Notes
Summary
BigBlueButton is an open-source virtual classroom. In versions prior to 3.0.13, the "Shared Notes" feature contains a Stored Cross-Site Scripting (XSS) vulnerability with the input location being the "Username" field and the output location on the "Shared Notes" page, when a user with a malicious username is editing content. This vulnerability allows a low-privileged user to execute arbitrary JavaScript in the context of higher-privileged users (e.g., Admins) who open the Shared Notes page. Version 3.0.13 fixes the issue.
Severity ?
7.1 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2024-39302 (GCVE-0-2024-39302)
Vulnerability from nvd – Published: 2024-06-28 20:51 – Updated: 2024-08-02 04:19
VLAI?
Title
Some bbb-record-core files installed with wrong file permission
Summary
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker may be able to exploit the overly elevated file permissions in the `/usr/local/bigbluebutton/core/vendor/bundle/ruby/2.7.0/gems/resque-2.6.0` directory with the goal of privilege escalation, potentially exposing sensitive information on the server. This issue has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Severity ?
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.18
Affected: >= 2.7.0, < 2.7.8 Affected: >= 2.8.0, < 3.0.0-alpha.7 |
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CVE-2024-38518 (GCVE-0-2024-38518)
Vulnerability from nvd – Published: 2024-06-28 20:25 – Updated: 2024-08-02 04:12
VLAI?
Title
bbb-web API additional parameters considered
Summary
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Severity ?
4.6 (Medium)
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.18
Affected: >= 2.7.0, < 2.7.8 Affected: >= 2.8.0, < 3.0.0-alpha.7 |
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CVE-2023-43798 (GCVE-0-2023-43798)
Vulnerability from nvd – Published: 2023-10-30 22:24 – Updated: 2024-09-05 20:19
VLAI?
Title
BigBlueButton Blind SSRF When Uploading Presentation (mitigation bypass)
Summary
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.
Severity ?
5.6 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.12
Affected: >= 2.7.0-alpha.1, < 2.7.0-rc.1 |
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CVE-2023-43797 (GCVE-0-2023-43797)
Vulnerability from nvd – Published: 2023-10-30 22:18 – Updated: 2024-09-05 20:20
VLAI?
Title
BigBlueButton Stored Cross-site Scripting vulnerability at Guest Lobby
Summary
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.
Severity ?
6.3 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.11
Affected: >= 2.7.0-alpha.1, < 2.7.0-beta.3 |
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CVE-2023-42804 (GCVE-0-2023-42804)
Vulnerability from nvd – Published: 2023-10-30 18:14 – Updated: 2024-09-05 20:23
VLAI?
Title
BigBlueButton Path Traversal – Reading Certain File Extensions
Summary
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.1 has a path traversal vulnerability that allows an attacker with a valid starting folder path, to traverse and read other files without authentication, assuming the files have certain extensions (txt, swf, svg, png). In version 2.6.0-beta.1, input validation was added on the parameters being passed and dangerous characters are stripped. There are no known workarounds.
Severity ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.0-beta.1
|
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CVE-2023-42803 (GCVE-0-2023-42803)
Vulnerability from nvd – Published: 2023-10-30 18:11 – Updated: 2024-09-06 20:12
VLAI?
Title
BigBlueButton Unrestricted File Upload vulnerability
Summary
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.
Severity ?
5.3 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.0-beta.2
|
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CVE-2023-33176 (GCVE-0-2023-33176)
Vulnerability from nvd – Published: 2023-06-26 19:50 – Updated: 2024-11-12 15:18
VLAI?
Title
Blind SSRF When Uploading Presentation in BigBlueButton
Summary
BigBlueButton is an open source virtual classroom designed to help teachers teach and learners learn. In affected versions are affected by a Server-Side Request Forgery (SSRF) vulnerability. In an `insertDocument` API request the user is able to supply a URL from which the presentation should be downloaded. This URL was being used without having been successfully validated first. An update to the `followRedirect` method in the `PresentationUrlDownloadService` has been made to validate all URLs to be used for presentation download. Two new properties `presentationDownloadSupportedProtocols` and `presentationDownloadBlockedHosts` have also been added to `bigbluebutton.properties` to allow administrators to define what protocols a URL must use and to explicitly define hosts that a presentation cannot be downloaded from. All URLs passed to `insertDocument` must conform to the requirements of the two previously mentioned properties. Additionally, these URLs must resolve to valid addresses, and these addresses must not be local or loopback addresses. There are no workarounds. Users are advised to upgrade to a patched version of BigBlueButton.
Severity ?
4.8 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
>= 2.6.0, < 2.6.9
Affected: < 2.5.18 |
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CVE-2022-23488 (GCVE-0-2022-23488)
Vulnerability from nvd – Published: 2022-12-17 00:28 – Updated: 2025-04-17 14:33
VLAI?
Title
BigBlueButton vulnerable to Insertion of Sensitive Information Into Sent Data
Summary
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.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4-rc-6
|
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CVE-2022-23490 (GCVE-0-2022-23490)
Vulnerability from nvd – Published: 2022-12-16 21:02 – Updated: 2025-04-17 14:34
VLAI?
Title
Improper access control to polling votes
Summary
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.
Severity ?
4.3 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4.0
|
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CVE-2022-41964 (GCVE-0-2022-41964)
Vulnerability from nvd – Published: 2022-12-16 17:17 – Updated: 2025-04-17 15:34
VLAI?
Title
BigBlueButton contains Response leaks in anonymous polls
Summary
BigBlueButton is an open source web conferencing system. This vulnerability only affects release candidates of BigBlueButton 2.4. The attacker can start a subscription for poll results before starting an anonymous poll, and use this subscription to see individual responses in the anonymous poll. The attacker had to be a meeting presenter. This issue is patched in version 2.4.0. There are no workarounds.
Severity ?
5.7 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
>= 2.4-alpha-1, < 2.4.0
|
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CVE-2022-41963 (GCVE-0-2022-41963)
Vulnerability from nvd – Published: 2022-12-16 13:00 – Updated: 2025-04-17 15:35
VLAI?
Title
BigBlueButton contains Improper Preservation of Permissions for whiteboard
Summary
BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. The attacker must be a meeting participant. This issue is patched in version 2.4.3 an version 2.5-alpha-1
Severity ?
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4.3
|
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CVE-2022-41962 (GCVE-0-2022-41962)
Vulnerability from nvd – Published: 2022-12-16 12:45 – Updated: 2025-04-17 15:37
VLAI?
Title
BigBlueButton contains Incorrect Authorization for setting emoji status
Summary
BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6, and 2.5-alpha-1 contain Incorrect Authorization for setting emoji status. A user with moderator rights can use the clear status feature to set any emoji status for other users. Moderators should only be able to set none as the status of other users. This issue is patched in 2.4-rc-6 and 2.5-alpha-1There are no workarounds.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
<2.4-rc-6
|
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CVE-2022-41961 (GCVE-0-2022-41961)
Vulnerability from nvd – Published: 2022-12-16 12:24 – Updated: 2025-04-17 17:24
VLAI?
Title
BigBlueButton subject to Ineffective user bans
Summary
BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.
Severity ?
4.3 (Medium)
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< v2.4-rc-6
|
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CVE-2025-61602 (GCVE-0-2025-61602)
Vulnerability from cvelistv5 – Published: 2025-10-09 20:40 – Updated: 2025-10-10 14:30
VLAI?
Title
BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId
Summary
BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2025-61601 (GCVE-0-2025-61601)
Vulnerability from cvelistv5 – Published: 2025-10-09 20:29 – Updated: 2025-10-15 19:47
VLAI?
Title
BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation
Summary
BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2025-55200 (GCVE-0-2025-55200)
Vulnerability from cvelistv5 – Published: 2025-10-09 18:51 – Updated: 2025-10-09 19:08
VLAI?
Title
BigBlueButton vulnerable to Stored XSS via name of user at Shared Notes
Summary
BigBlueButton is an open-source virtual classroom. In versions prior to 3.0.13, the "Shared Notes" feature contains a Stored Cross-Site Scripting (XSS) vulnerability with the input location being the "Username" field and the output location on the "Shared Notes" page, when a user with a malicious username is editing content. This vulnerability allows a low-privileged user to execute arbitrary JavaScript in the context of higher-privileged users (e.g., Admins) who open the Shared Notes page. Version 3.0.13 fixes the issue.
Severity ?
7.1 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 3.0.13
|
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CVE-2024-39302 (GCVE-0-2024-39302)
Vulnerability from cvelistv5 – Published: 2024-06-28 20:51 – Updated: 2024-08-02 04:19
VLAI?
Title
Some bbb-record-core files installed with wrong file permission
Summary
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker may be able to exploit the overly elevated file permissions in the `/usr/local/bigbluebutton/core/vendor/bundle/ruby/2.7.0/gems/resque-2.6.0` directory with the goal of privilege escalation, potentially exposing sensitive information on the server. This issue has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Severity ?
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.18
Affected: >= 2.7.0, < 2.7.8 Affected: >= 2.8.0, < 3.0.0-alpha.7 |
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CVE-2024-38518 (GCVE-0-2024-38518)
Vulnerability from cvelistv5 – Published: 2024-06-28 20:25 – Updated: 2024-08-02 04:12
VLAI?
Title
bbb-web API additional parameters considered
Summary
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Severity ?
4.6 (Medium)
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.18
Affected: >= 2.7.0, < 2.7.8 Affected: >= 2.8.0, < 3.0.0-alpha.7 |
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CVE-2023-43798 (GCVE-0-2023-43798)
Vulnerability from cvelistv5 – Published: 2023-10-30 22:24 – Updated: 2024-09-05 20:19
VLAI?
Title
BigBlueButton Blind SSRF When Uploading Presentation (mitigation bypass)
Summary
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.
Severity ?
5.6 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.12
Affected: >= 2.7.0-alpha.1, < 2.7.0-rc.1 |
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CVE-2023-43797 (GCVE-0-2023-43797)
Vulnerability from cvelistv5 – Published: 2023-10-30 22:18 – Updated: 2024-09-05 20:20
VLAI?
Title
BigBlueButton Stored Cross-site Scripting vulnerability at Guest Lobby
Summary
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.
Severity ?
6.3 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.11
Affected: >= 2.7.0-alpha.1, < 2.7.0-beta.3 |
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CVE-2023-42804 (GCVE-0-2023-42804)
Vulnerability from cvelistv5 – Published: 2023-10-30 18:14 – Updated: 2024-09-05 20:23
VLAI?
Title
BigBlueButton Path Traversal – Reading Certain File Extensions
Summary
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.1 has a path traversal vulnerability that allows an attacker with a valid starting folder path, to traverse and read other files without authentication, assuming the files have certain extensions (txt, swf, svg, png). In version 2.6.0-beta.1, input validation was added on the parameters being passed and dangerous characters are stripped. There are no known workarounds.
Severity ?
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.0-beta.1
|
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CVE-2023-42803 (GCVE-0-2023-42803)
Vulnerability from cvelistv5 – Published: 2023-10-30 18:11 – Updated: 2024-09-06 20:12
VLAI?
Title
BigBlueButton Unrestricted File Upload vulnerability
Summary
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.
Severity ?
5.3 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.6.0-beta.2
|
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CVE-2023-33176 (GCVE-0-2023-33176)
Vulnerability from cvelistv5 – Published: 2023-06-26 19:50 – Updated: 2024-11-12 15:18
VLAI?
Title
Blind SSRF When Uploading Presentation in BigBlueButton
Summary
BigBlueButton is an open source virtual classroom designed to help teachers teach and learners learn. In affected versions are affected by a Server-Side Request Forgery (SSRF) vulnerability. In an `insertDocument` API request the user is able to supply a URL from which the presentation should be downloaded. This URL was being used without having been successfully validated first. An update to the `followRedirect` method in the `PresentationUrlDownloadService` has been made to validate all URLs to be used for presentation download. Two new properties `presentationDownloadSupportedProtocols` and `presentationDownloadBlockedHosts` have also been added to `bigbluebutton.properties` to allow administrators to define what protocols a URL must use and to explicitly define hosts that a presentation cannot be downloaded from. All URLs passed to `insertDocument` must conform to the requirements of the two previously mentioned properties. Additionally, these URLs must resolve to valid addresses, and these addresses must not be local or loopback addresses. There are no workarounds. Users are advised to upgrade to a patched version of BigBlueButton.
Severity ?
4.8 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
>= 2.6.0, < 2.6.9
Affected: < 2.5.18 |
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CVE-2022-23488 (GCVE-0-2022-23488)
Vulnerability from cvelistv5 – Published: 2022-12-17 00:28 – Updated: 2025-04-17 14:33
VLAI?
Title
BigBlueButton vulnerable to Insertion of Sensitive Information Into Sent Data
Summary
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.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4-rc-6
|
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CVE-2022-23490 (GCVE-0-2022-23490)
Vulnerability from cvelistv5 – Published: 2022-12-16 21:02 – Updated: 2025-04-17 14:34
VLAI?
Title
Improper access control to polling votes
Summary
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.
Severity ?
4.3 (Medium)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4.0
|
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CVE-2022-41964 (GCVE-0-2022-41964)
Vulnerability from cvelistv5 – Published: 2022-12-16 17:17 – Updated: 2025-04-17 15:34
VLAI?
Title
BigBlueButton contains Response leaks in anonymous polls
Summary
BigBlueButton is an open source web conferencing system. This vulnerability only affects release candidates of BigBlueButton 2.4. The attacker can start a subscription for poll results before starting an anonymous poll, and use this subscription to see individual responses in the anonymous poll. The attacker had to be a meeting presenter. This issue is patched in version 2.4.0. There are no workarounds.
Severity ?
5.7 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
>= 2.4-alpha-1, < 2.4.0
|
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CVE-2022-41963 (GCVE-0-2022-41963)
Vulnerability from cvelistv5 – Published: 2022-12-16 13:00 – Updated: 2025-04-17 15:35
VLAI?
Title
BigBlueButton contains Improper Preservation of Permissions for whiteboard
Summary
BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. The attacker must be a meeting participant. This issue is patched in version 2.4.3 an version 2.5-alpha-1
Severity ?
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Affected:
< 2.4.3
|
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