Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
77 results · page 1 of 2
Aug 20, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-55491 · Other software · bigbluebutton · reported by GitHubMedium 5.4
BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script content, and the script executed in another user's browser when that user replayed the recording. This issue is fixed in version 3.0.29.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 20, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-55489 · Other software · bigbluebutton · reported by GitHubMedium 4.9
BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting. akka-bbb-apps/src/main/scala/org/bigbluebutton/core/apps/presentationpod/RemovePresentationPubMsgHdlr.scala did not verify the presentation's meeting identifier before deletion, allowing a presenter who knew the identifier to delete another meeting's presentation and disrupt its availability. This issue is fixed in version 3.0.29.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 20, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-46682 · Other software · bigbluebutton · reported by GitHubHigh 8.5
BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton allowed authenticated moderators to inject SQL through the meetingId and userId values used by refreshBreakoutRoomsVisibleForUsers in akka-bbb-apps/src/main/scala/org/bigbluebutton/core/db/BreakoutRoomUserDAO.scala. The method interpolated those values into breakout room visibility queries, allowing arbitrary SQL execution against the application database. This issue is fixed in version 3.0.23.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 20, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-46355 · Other software · bigbluebutton · reported by GitHubHigh 7.1
BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active participant could reuse that participant's session and impersonate the participant in the same meeting because handleJoinExistingUser was a routable controller action rather than a private helper. This issue is fixed in version 3.0.23.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 6, 2026PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton.CVE-2026-71555 · Other software · THM-Health · reported by GitHubMedium 4.1
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. From 2.1.0 until 4.14.1, PILOS does not send a Cross-Origin-Opener-Policy response header, so pages opened by PILOS via a link that opens a new browsing context (e.g., target="_blank") retain a window.opener reference back to the originating PILOS tab. A malicious destination page reached this way can use window.opener to navigate or manipulate the original PILOS tab, a technique known as reverse tabnabbing, potentially redirecting an authenticated user to a phishing page that mimics PILOS. This issue is fixed in version 4.14.1.
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 16, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-46404 · Other software · bigbluebutton · reported by GitHubMedium 6.8
BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly restrict access to site local and link local addresses. The redirect following logic now pins resolved IPs. This issue is fixed in version 3.0.23.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 16, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-46353 · Other software · bigbluebutton · reported by GitHubHigh 8.1
BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum validation could be bypassed when a presentationUploadExternalUrl parameter was supplied to API request handling in CreateMeeting.java and ValidationService.java, allowing a user to send valid requests to some endpoints without a checksum. This issue is fixed in version 3.0.21.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 16, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-46351 · Other software · bigbluebutton · reported by GitHubHigh 8.1
BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference sessionToken values with insufficiently secure randomness in bbb-common-web/src/main/java/org/bigbluebutton/api/Util.java and bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy, allowing a session user to predict other users' conference session tokens and impersonate them. This issue is fixed in version 3.0.21.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 18, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-27737 · Other software · bigbluebutton · reported by GitHubMedium 6.5
BigBlueButton is an open-source virtual classroom. In versions prior to 3.0.19, the recording playback (presentation format) was not sanitizing user's input in public chat. This allowed for a malicious actor to craft and carry out a targeted XSS attack, activated on anyone replaying the recording. This issue has been fixed 3.0.19.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 21, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-41127 · Other software · bigbluebutton · reported by GitHubMedium 6.5
BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are available.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 21, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-41126 · Other software · bigbluebutton · reported by GitHubMedium 4.3
BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds are available.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 25, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-27736 · Other software · bigbluebutton · reported by GitHubMedium 6.1
BigBlueButton is an open-source virtual classroom. In versions on the 3.x branch prior to 3.0.20, the string received with errorRedirectUrl lacks validation, using it directly in the respondWithRedirect function leads to an Open Redirect vulnerability. BigBlueButton 3.0.20 patches the issue. No known workarounds are available.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 21, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-27467 · Other software · bigbluebutton · reported by GitHubLow 2
BigBlueButton is an open-source virtual classroom. In versions 3.0.19 and below, when first joining a session with the microphone muted, the client sends audio to the server regardless of mute state. Media is discarded at the server side, so it isn't audible to any participants, but this may allow for malicious server operators to access audio data. The behavior is only incorrect between joining the meeting and the first time the user unmutes. This issue has been fixed in version 3.0.20.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 21, 2026BigBlueButton is an open-source virtual classroom.CVE-2026-27466 · Other software · bigbluebutton · reported by GitHubHigh 7.2
BigBlueButton is an open-source virtual classroom. In versions 3.0.21 and below, the official documentation for "Server Customization" on Support for ClamAV as presentation file scanner contains instructions that leave a BBB server vulnerable for Denial of Service. The flawed command exposes both ports (3310 and 7357) to the internet. A remote attacker can use this to send complex or large documents to clamd and waste server resources, or shutdown the clamd process. The clamd documentation explicitly warns about exposing this port. Enabling ufw (ubuntu firewall) during install does not help, because Docker routes container traffic through the nat table, which is not managed or restricted by ufw. Rules installed by ufw in the filter table have no effect on docker traffic. In addition, the provided example also mounts /var/bigbluebutton with write permissions into the container, which should not be required. Future vulnerabilities in clamd may allow attackers to manipulate files in that folder. Users are unaffected unless they have opted in to follow the extra instructions from BigBlueButton's documentation. This issue has been fixed in version 3.0.22.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 12, 2026PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton.CVE-2026-22800 · Other software · THM-Health · reported by GitHubLow 2.4
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. Prior to 4.10.0, Cross-Site Request Forgery (CSRF) vulnerability exists in an administrative API endpoint responsible for terminating all active video conferences on a single server. The affected endpoint performs a destructive action but is exposed via an HTTP GET request. Although proper authorization checks are enforced and the endpoint cannot be triggered cross-site, the use of GET allows the action to be implicitly invoked through same-site content (e.g. embedded resources rendered within the application). As a result, an authenticated administrator who views crafted content within the application may unknowingly trigger the endpoint, causing all active video conferences on the server to be terminated without explicit intent or confirmation. This vulnerability is fixed in 4.10.0.
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 27, 2025PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton.CVE-2025-62781 · Other software · THM-Health · reported by GitHubMedium 5
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. Prior to 4.8.0, users with a local account can change their password while logged in. When doing so, all other active sessions are terminated, except for the currently active one. However, the current session’s token remains valid and is not refreshed. If an attacker has previously obtained this session token through another vulnerability, changing the password will not invalidate their access. As a result, the attacker can continue to act as the user even after the password has been changed. This vulnerability is fixed in 4.8.0.
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 27, 2025PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton.CVE-2025-62524 · Other software · THM-Health · reported by GitHubMedium 5.3
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. PILOS before 4.8.0 exposes the PHP version via the X-Powered-By header, enabling attackers to fingerprint the server and assess potential exploits. This information disclosure vulnerability originates from PHP’s base image. Additionally, the PHP version can also be inferred through the PILOS version displayed in the footer and by examining the source code available on GitHub. This information disclosure vulnerability has been patched in PILOS in v4.8.0.
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 27, 2025PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton.CVE-2025-62523 · Other software · THM-Health · reported by GitHubMedium 6.3
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. PILOS before 4.8.0 includes a Cross-Origin Resource Sharing (CORS) misconfiguration in its middleware: it reflects the Origin request header back in the Access-Control-Allow-Origin response header without proper validation or a whitelist, while Access-Control-Allow-Credentials is set to true. This behavior could allow a malicious website on a different origin to send requests (including credentials) to the PILOS API. This may enable exfiltration or actions using the victim’s credentials if the server accepts those cross-origin requests as authenticated. Laravel’s session handling applies additional origin checks such that cross-origin requests are not authenticated by default. Because of these session-origin protections, and in the absence of any other unknown vulnerabilities that would bypass Laravel’s origin/session checks, this reflected-Origin CORS misconfiguration is not believed to be exploitable in typical PILOS deployments. This vulnerability has been patched in PILOS in v4.8.0
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2025BigBlueButton is an open-source virtual classroom.CVE-2025-61602 · Other software · bigbluebutton · reported by GitHubHigh 7.5
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2025BigBlueButton is an open-source virtual classroom.CVE-2025-61601 · Other software · bigbluebutton · reported by GitHubHigh 7.5
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2025BigBlueButton is an open-source virtual classroom.CVE-2025-55200 · Other software · bigbluebutton · reported by GitHubHigh 7.1
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 16, 2024BigBlueButton: Stored Cross-Site ScriptingCVE-2023-7296 · WordPress plugins & themes · reported by WordfenceMedium 6.4
The BigBlueButton plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the moderator code and viewer code fields in versions up to, and including, 3.0.0-beta.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with author privileges or higher to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
- Product
- BigBlueButton
- Affected
- up to 3.0.0-beta.4
- What to do
- Affects up to 3.0.0-beta.4. Update BigBlueButton to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD recordplugins.trac.wordpress.orgwordfence.com
Jun 28, 2024BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn.CVE-2024-39302 · Other software · bigbluebutton · reported by GitHubLow 3.7
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 28, 2024BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn.CVE-2024-38518 · Other software · bigbluebutton · reported by GitHubMedium 4.6
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 18, 2024Insufficient capability checks meant it was possible for users to gain access to BigBlueButton join URLs they did not have permission to access.CVE-2024-38273 · Other software · Moodle · reported by patrick@puiterwijk.orgMedium 5.4
Insufficient capability checks meant it was possible for users to gain access to BigBlueButton join URLs they did not have permission to access.
- Product
- Moodle
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Apr 25, 2024Greenlight is an end-user interface for BigBlueButton servers.CVE-2022-36029 · Other software · bigbluebutton · reported by GitHubCritical 9.1
Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue.
- Product
- greenlight
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 25, 2024Greenlight is an end-user interface for BigBlueButton servers.CVE-2022-36028 · Other software · bigbluebutton · reported by GitHubCritical 9.1
Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue.
- Product
- greenlight
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 9, 2023When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity.CVE-2023-5543 · Other software · Moodle · reported by patrick@puiterwijk.orgLow 3.3
When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.
- Product
- Moodle
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgit.moodle.orgbugzilla.redhat.com
Nov 8, 2023PILOS is an open source front-end for BigBlueButton servers with a built-in load balancer.CVE-2023-47107 · Other software · THM-Health · reported by GitHubHigh 8.8
PILOS is an open source front-end for BigBlueButton servers with a built-in load balancer. The password reset component deployed within PILOS uses the hostname supplied within the request host header when building a password reset URL. It may be possible to manipulate the URL sent to PILOS users when so that it points to the attackers server thereby disclosing the password reset token if/when the link is followed. This only affects local user accounts and requires the password reset option to be enabled. This issue has been patched in version 2.3.0.
- Product
- PILOS
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 30, 2023BigBlueButton is an open-source virtual classroom.CVE-2023-43798 · Other software · bigbluebutton · reported by GitHubMedium 5.6
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 30, 2023BigBlueButton is an open-source virtual classroom.CVE-2023-43797 · Other software · bigbluebutton · reported by GitHubMedium 6.3
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 30, 2023BigBlueButton is an open-source virtual classroom.CVE-2023-42804 · Other software · bigbluebutton · reported by GitHubLow 3.1
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 30, 2023BigBlueButton is an open-source virtual classroom.CVE-2023-42803 · Other software · bigbluebutton · reported by GitHubMedium 5.3
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 26, 2023BigBlueButton is an open source virtual classroom designed to help teachers teach and learners learn.CVE-2023-33176 · Other software · bigbluebutton · reported by GitHubMedium 4.8
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-23488 · Other software · bigbluebutton · reported by GitHubMedium 6.5
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-23490 · Other software · bigbluebutton · reported by GitHubMedium 4.3
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-41964 · Other software · bigbluebutton · reported by GitHubMedium 5.7
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-41963 · Other software · bigbluebutton · reported by GitHubLow 2.7
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
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-41962 · Other software · bigbluebutton · reported by GitHubLow 2.7
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 16, 2022BigBlueButton is an open source web conferencing system.CVE-2022-41961 · Other software · bigbluebutton · reported by GitHubMedium 4.3
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.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 15, 2022BigBlueButton is an open source web conferencing system.CVE-2022-41960 · Other software · bigbluebutton · reported by GitHubMedium 4.3
BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2022BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.CVE-2020-27602 · Other software · Bigbluebutton · reported by MITRECritical 9.8
BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.
- Product
- Bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 28, 2022In BigBlueButton before 2.2.7, lockSettingsProps.disablePrivateChat does not apply to already opened chats.CVE-2020-27601 · Other software · Bigbluebutton · reported by MITRELow 3.5
In BigBlueButton before 2.2.7, lockSettingsProps.disablePrivateChat does not apply to already opened chats. This occurs in bigbluebutton-html5/imports/ui/components/chat/service.js.
- Product
- Bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 27, 2022BigBlueButton is an open source web conferencing system.CVE-2022-31065 · Other software · bigbluebutton · reported by GitHubMedium 6.5
BigBlueButton is an open source web conferencing system. In affected versions an attacker can embed malicious JS in their username and have it executed on the victim's client. When a user receives a private chat from the attacker (whose username contains malicious JavaScript), the script gets executed. Additionally when the victim receives a notification that the attacker has left the session. This issue has been patched in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 27, 2022BigBlueButton is an open source web conferencing system.CVE-2022-31064 · Other software · bigbluebutton · reported by GitHubMedium 6.5
BigBlueButton is an open source web conferencing system. Users in meetings with private chat enabled are vulnerable to a cross site scripting attack in affected versions. The attack occurs when the attacker (with xss in the name) starts a chat. in the victim's client the JavaScript will be executed. This issue has been addressed in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.comseclists.org
Jun 27, 2022Greenlight is a simple front-end interface for your BigBlueButton server.CVE-2022-31039 · Other software · bigbluebutton · reported by GitHubMedium 4.3
Greenlight is a simple front-end interface for your BigBlueButton server. In affected versions an attacker can view any room's settings even though they are not authorized to do so. Only the room owner and administrator should be able to view a room's settings. This issue has been patched in release version 2.12.6.
- Product
- greenlight
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 24, 2022BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality.CVE-2022-27238 · Other software · Bigbluebutton · reported by MITREMedium 5.4
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.
- Product
- Bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2022IdeaLMS 2022 allows SQL injection via the IdeaLMS/ChatRoom/ClassAccessControl/6?isBigBlueButton=0&ClassID= pathname.CVE-2022-31788 · Other software · Ideaco · reported by MITRECritical 9.8
IdeaLMS 2022 allows SQL injection via the IdeaLMS/ChatRoom/ClassAccessControl/6?isBigBlueButton=0&ClassID= pathname.
- Product
- Idealms
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgist.github.com
Jun 2, 2022BigBlueButton Greenlight 2.11.1 allows XSS.CVE-2022-26497 · Other software · Bigbluebutton · reported by MITREMedium 5.4
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.
- Product
- Greenlight
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.comgithub.com
Jun 1, 2022BigBlueButton is an open source web conferencing system.CVE-2022-29236 · Other software · bigbluebutton · reported by GitHubMedium 4.3
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.
- Product
- bigbluebutton
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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