{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-49952/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-15T19:59:18.533Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-49952","@id":"https://www.cve.org/CVERecord?id=CVE-2026-49952","description":"Discuz! X5.0 releases 20260320 through 20260501 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to gain unauthorized access to database backup and restore functionality by exploiting a shared cryptographic key between UCenter integration and the database backup API exposed by dbbak.php. Attackers can inject a crafted payload through the username parameter during login to abuse the encryption oracle in logging_ctl::logging_more(), obtain a legitimately"},"products":[{"@id":"cpe:2.3:a:discuz\\!:discuz\\!_x5.0:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:discuz\\!:discuz\\!_x5.0:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-15T19:59:18.533Z"}]}