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-2026-84021
Unknown Bold Page Builder — Bold Page Builder < 5.9.8 - Contributor+ Stored XSS via bt_bb_button/bt_bb_headline/bt_bb_icon URL
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L H R U H H H 6.8 .0043 35.1 —
AFFECTED
Product Versions Fixed
Bold Page Builder unspecified —
TIMELINE
Sep 1 Reserved by WPScan
Sep 5 Published (CNA: WPScan)
Sep 6 EXPLOIT PUBLISHED — CVE-2026-84021 (Unknown Bold Page Builder). Public exploit reference added.
Description
The Bold Page Builder WordPress plugin before 5.9.8 does not properly validate a link URL before outputting it in an HTML attribute, relying on a filter that can be evaded, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when a user clicks the affected link.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 1, 2026 | Reserved | Reserved by WPScan |
| September 5, 2026 | Published | Published (CNA: WPScan) |
| September 6, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-84021 (Unknown Bold Page Builder). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | Bold Page Builder | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-84021 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.
