CVE-2026-76547

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 v3.1

6.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.25% chance of exploitation in the next 30 days, 16th percentile

Published

2026-08-29

Updated

2026-08-30

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/b80151f4-e910-4263-9ecc-470fb39d7583/

References

• CVE Record
• NVD entry

Related

• CVE-2026-76546
• CVE-2026-76548
• CVE-2026-7654
• CVE-2026-76549
• CVE-2026-7653
• CVE-2026-76564