{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-53674/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-10T16:32:21.733Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-53674","@id":"https://www.cve.org/CVERecord?id=CVE-2026-53674","description":"BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service thro"},"products":[{"@id":"cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-10T16:32:21.733Z"}]}