CVE-2026-53673

BuddyPress 14.4.0 Private Message IDOR via REST API user_id Parameter

Published Jun 9, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-j3j5-5m8v-7gvc BuddyPress: Authenticated attackers can access arbitrary private message threads via user_id request parameter
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Vendors & Products Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description 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.
Title BuddyPress 14.4.0 Private Message IDOR via REST API user_id Parameter
First Time appeared Buddypress
Buddypress buddypress
Weaknesses CWE-639
CPEs cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:wordpress:*:*
Vendors & Products Buddypress
Buddypress buddypress
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 8, 2026, 3:23 PM
Reserved
Jun 9, 2026, 11:14 PM
Status
Deferred
Published
Jun 10, 2026, 12:16 AM
Modified
Oct 8, 2026, 4:17 PM