Video Conferencing with BigBlueButton (BBB) <= 3.2.0 - Unauthenticated Open Redirect via 'current_page' Parameter
- ID
- WPSEC-2026-0131
- Plugin
- Virtual Classroom & Video Conferencing – BigBlueButton (video-conferencing-with-bbb)
- Affected
- all versions before 3.2.15
- Remediation
- Update to 3.2.15 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-601
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-22
- Attack surface
- Video Conferencing with BigBlueButton (BBB) on WPSec AttackSurface
- Fix released
- Published
Description
The Virtual Classroom & Video Conferencing plugin for WordPress is vulnerable to Open Redirect via the 'current_page' parameter of the room join request in all versions up to, and including, 3.2.0. This is due to the plugin passing the user-supplied return URL to wp_redirect() instead of wp_safe_redirect() when a join attempt fails (for example with an invalid access code) or has to wait for a moderator. This makes it possible for unauthenticated attackers to redirect visitors to arbitrary external sites, for example for phishing, if they can trick a visitor into following a crafted join link. The link must carry the join form's nonce, which is identical for all logged-out visitors and can be read from any public room page, so logged-out visitors are the practical targets and a crafted link stays valid for up to 24 hours.
References
- https://wpsec.com/vuln/WPSEC-2026-0131/
- https://plugins.svn.wordpress.org/video-conferencing-with-bbb/tags/3.2.15/
- https://wordpress.org/plugins/video-conferencing-with-bbb/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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