Summary
CVE-2026-78267 is an unauthenticated privilege escalation vulnerability in the TranslatePress WordPress plugin (translatepress-multilingual), developed by Cozmoslabs. The flaw is rated CRITICAL (CVSS 9.8) and stems from incorrect privilege assignment (CWE-266), allowing a remote attacker with no authentication to gain elevated privileges on affected WordPress sites.
Technical details
- Root cause: Incorrect privilege assignment (CWE-266) within the TranslatePress plugin’s privilege-handling logic.
- Trigger conditions: No authentication or user interaction is required to exploit the flaw.
- Attack vector: Network-based (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
- Impact: Full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) — an attacker can escalate privileges on the affected WordPress installation without any prior access.
Affected software
- TranslatePress (translatepress-multilingual) WordPress plugin, versions up to and including 3.3.2.
Severity
- CVSS v3.1 Base Score: 9.8 (Critical)
- Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Mitigation and recommended actions
- Immediate: Update the TranslatePress plugin to version 3.3.3 or later, which contains the fix for this issue.
- If no patch can be applied immediately: Restrict or monitor administrative and privilege-related endpoints exposed by the plugin, and consider temporarily deactivating TranslatePress on internet-facing WordPress sites until the update can be applied.

