CVE-2026-76547mediumCWE-502

CVE-2026-76547: medium-severity vulnerability in User Profile Builder

Profile Builder < 4.0.1 - Admin+ PHP Object Injection via Import/Export

Published · Updated

Follow this CVE+ Monitor User Profile Builder

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.6epss 0.4%
from disclosure to weapon29 days
Published on NVDAug 29
1st PoC+29d
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 .
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · User Profile Builder
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — User Profile Builder

In the same product, most dangerous first.

CVE-2024-6366CRITICALUser Profile Builder < 3.11.8 - Unauthenticated Media UploadEPSS 29.0%CVE-2024-6695CRITICALprofile-builder <= 3.11.8 - Unauthenticated Privilege EscalationEPSS 0.8%CVE-2025-15030CRITICALUser Profile Builder < 3.15.2 - Unauthenticated Arbitrary Password ResetEPSS 0.5%CVE-2026-76546MEDIUMProfile Builder < 4.0.1 - Contributor+ Stored XSS via Format Date ShortcodeEPSS 0.4%CVE-2026-15368HIGHProfile Builder < 3.16.4 - Unauthenticated Account Takeover via Auto-Login After RegistrationEPSS 0.4%CVE-2024-6708MEDIUMProfile Builder <= 3.12.0 - Admin+ Stored Cross Site ScriptingEPSS 0.4%