WordPress security changelog
HIGH
CVE-2026-40733
Deferred
ShiftUp: Code execution
ShiftUp is affected by code execution. The vulnerable path is reachable without authentication. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is n/a through 1.3.
CVE / CNA score
8.1
CVSS 3.1 · audit@patchstack.com
NVD score
Pending
NVD has not published its own CVSS assessment.
- Component
- ShiftUp
- Plugin slug
shiftup- Affected
- n/a through 1.3
- Safe version
1.4- Published
- Jun 17, 2026
This CVE was published Jun 17, 2026 and is one of 1 known issue for this theme.
What to do
Patch or disable the affected component.
Update ShiftUp to 1.4 or later, or disable and remove it until a fixed version is available.
Source record
Technical description
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References