Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-76547
Unknown User Profile Builder — Profile Builder < 4.0.1 - Admin+ PHP Object Injection via Import/Export
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H H N U H H H 6.6 .0042 33.7 —
AFFECTED
Product Versions Fixed
User Profile Builder 3.3.4 – —
TIMELINE
Aug 19 Reserved by WPScan
Aug 29 Published (CNA: WPScan)
Aug 30 EXPLOIT PUBLISHED — CVE-2026-76547 (Unknown User Profile Builder). Public exploit reference added.
Description
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 .
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| August 19, 2026 | Reserved | Reserved by WPScan |
| August 29, 2026 | Published | Published (CNA: WPScan) |
| August 30, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-76547 (Unknown User Profile Builder). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | User Profile Builder | — | 3.3.4 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-76547 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
