CVE-2026-53673
BuddyPress 14.4.0 Private Message IDOR via REST API user_id Parameter
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
BuddyPress 14.4.0 contains an insecure direct object reference vulnerability in the messages REST API that allows authenticated attackers to access arbitrary private message threads by supplying a user_id parameter in the request. Attackers can pass another user's identifier to the get_item_permissions_check method, which validates the supplied user_id instead of the logged-in user and is reused by the update and delete handlers, to read, reply to, or delete any user's private messages.
| CWE | CWE-639 |
| Vendor | buddypress |
| Product | buddypress |
| Published | Jun 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
BuddyPress / BuddyPress
0 ≤ 14.4.0
References
Credits
Scott Moore - VulnCheck