EUVD-2026-68051
GHSA-w8mx-gm67-wrqq
Severity by source
AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Admin authentication and non-default add-on enablement justify PR:H and AC:H; full C/I/A impact is conditional on an external gadget chain being present.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
The User Profile Builder WordPress plugin before 4.0.1 does not validate the type of data being deserialized when importing a configuration file, allowing high privilege users such as administrators to conduct PHP Object Injection. The affected feature is a free add-on which is disabled by default, and no POP chain is present in the User Profile Builder WordPress plugin before 4.0.1 itself, so further impact requires a suitable gadget from another installed User Profile Builder WordPress plugin before 4.0.1 or .
AnalysisAI
PHP Object Injection in User Profile Builder WordPress plugin (versions 3.3.4 through before 4.0.1) allows authenticated administrators to inject arbitrary PHP objects by uploading a malicious configuration file through the plugin's import feature. Exploitation is gated by two non-trivial conditions: the affected free add-on must be explicitly enabled (it is disabled by default), and a suitable POP chain gadget must exist in another installed plugin or theme before code execution is achievable. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires WordPress administrator-level authentication (confirmed by CVSS PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.6 Medium is well-calibrated for this vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade User Profile Builder to version 4.0.1 or later, which validates deserialized data types during configuration import - this is the vendor-confirmed patch per EUVD-2026-68051 and the WPScan advisory at https://wpscan.com/vulnerability/b80151f4-e910-4263-9ecc-470fb39d7583/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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