PT-2026-48335 · Buddypress · Buddypress

Published 2026-06-09 · Updated 2026-06-10 · CVE-2026-53673

Mitre

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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.

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-53673

Affected Products

Buddypress

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-53673 · Security Note
• https://buddypress.org · Note
• https://vulncheck.com/advisories/buddypress-private-message-idor-via-rest-api-user-id-parameter · Note
• https://wordpress.org/plugins/buddypress · Note