CVE-2026-40733
WordPress ShiftUp theme <= 1.3 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
WordPress ShiftUp theme <= 1.3 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
- Record
CVE-2026-40733- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-37693
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
- Record
EUVD-2026-37693- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-838h-2w63-95hq
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
- Record
GHSA-838h-2w63-95hq- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Unauthenticated PHP Object Injection in ShiftUp <= 1.3 versions.
- Record
CVE-2026-40733- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-40733 is a high vulnerability (CVSS 8.1) in Mikado-themes Shiftup, published June 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 23rd percentile. No source names a fixed version.