Description
bbPress before 2.6.19 contains an information disclosure vulnerability that allows unauthenticated visitors to view restricted subforum posts because hide_sitewide ignores ancestor forum visibility. Topics and replies in public subforums nested under private or hidden parents expose title, permalink and body via the BuddyPress activity stream and REST endpoint.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| bbPress | bbPress | < 2.6.19 | 2.6.19 |
References
- https://bbpress.org/blog/2026/09/bbpress-2-6-19-is-out/ release-notes
- https://github.com/bbpress/bbPress/commit/5dce23a0b23a22d32c45b96fd44588952b16fe8a patch
- https://github.com/bbpress/bbPress/blob/04c6f1513c6ca34e849ca16015b7a08b3c15e753/src/includes/extend/buddypress/activity.php#L431 technical-description
- https://wordpress.org/plugins/bbpress/ product
- VulnCheck Advisory: bbPress before 2.6.19 Information Disclosure via BuddyPress Activity Stream third-party-advisory