Code injection

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 gra...

BigBlueButton Denial of Service Vulnerability

BigBlueButton is an open source web conferencing system from the BigBlueButton community.BigBlueButton suffers from a denial-of-service vulnerability. An attacker could use the vulnerability to cause a denial of service to the bbb-html5 service...

CVE-2022-29235

CVE-2022-29235 affects BigBlueButton: an information-disclosure in which an attacker who knows a meeting ID could access data about an external video being shared (current timestamp and play/pause). Affected versions: 2.2–2.3.17 and 2.4-rc-1 through 2.4-rc-5. The issue is fixed in 2.3.18 and 2.4-...

CVE-2022-29236 Improper access control for pencil annotations in BigBlueButton

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 gra...

CVE-2022-29236

CVE-2022-29236 affects BigBlueButton 2.2–2.3.17 and 2.4-rc-1–2.4-rc-5, where the server-side permission check for drawing on the whiteboard can be bypassed due to a previously introduced grace period. The attacker must be a meeting participant. The issue was fixed in versions 2.3.18 and 2.4-rc-6....

CVE-2022-29236 Improper access control for pencil annotations in BigBlueButton

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 gra...

CVE-2022-29234

BigBlueButton vulnerability CVE-2022-29234 allows a participant to send messages to a locked chat within a 5-second grace period after the lock settings take effect. Affected versions include 2.2 through 2.3.17 and 2.4.0. The issue is mitigated by patches in version 2.3.18 and 2.4.1, which close ...

CVE-2022-29234 Grace period for lock settings in public/private chats in BigBlueButton

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting...

CVE-2022-29234 Grace period for lock settings in public/private chats in BigBlueButton

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting...

CVE-2022-29233

Summary: CVE-2022-29233 affects BigBlueButton and allows an attacker in a meeting to bypass access controls to reach all breakout rooms. The root cause is permission checks that rely on internal IDs rather than validating the user’s role. Affected versions: 2.2 up to before 2.3.18 and 2.4-rc-1. F...

CVE-2022-29169

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...

Design/Logic Flaw

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...

Design/Logic Flaw

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...

CVE-2022-29232 Exposure of messages in BigBlueButton public chats

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...

CVE-2022-29232

CVE-2022-29232 affects BigBlueButton: versions prior to 2.3.9 and 2.4-beta-1 disclose public chat messages across meetings to participants in a server where access controls are bypassed. The root cause is improper access control for meeting chat content. Patches are available in 2.3.9 and 2.4-bet...

CVE-2022-29169

BigBlueButton is vulnerable to a ReDoS in the bbb-html5 service due to the useragent lookup path. Affected software: BigBlueButton versions starting with 2.2 and before 2.3.19, 2.4.7, and 2.5.0-beta.2. Root cause: the useragent.lookup() function uses regex-based input handling in html5client/user...

WordPress Video Conferencing with Zoom plugin <= 3.9.2 - Reflected Cross-Site Scripting (XSS) vulnerability

Reflected Cross-Site Scripting XSS vulnerability discovered by WPScanTeam in WordPress Video Conferencing with Zoom plugin versions = 3.9.2. Solution Update the WordPress Video Conferencing with Zoom plugin to the latest available version at least 3.9.3...

Video Conferencing with Zoom < 3.9.3 - Reflected Cross-Site Scripting

The plugin does not escape some URLs before outputting them back in attributes, leading to Reflected Cross-Site Scripting PoC https://example.com/wp-admin/edit.php?posttype=zoom-meetings=zoom-video-conferencing-settings"...

Video Conferencing with Zoom < 3.9.3 - Reflected Cross-Site Scripting

The plugin does not escape some URLs before outputting them back in attributes, leading to Reflected Cross-Site Scripting https://example.com/wp-admin/edit.php?posttype=zoom-meetings&page=zoom-video-conferencing-settings&a"alert/XSS/...

CVE-2022-24890

Nextcloud Talk is a video and audio conferencing app for Nextcloud. In versions prior to 13.0.5 and 14.0.0, a call moderator can indirectly enable user webcams by granting permissions, if they were enabled before removing the permissions. A patch is available in versions 13.0.5 and 14.0.0. There...