Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-96899
Unknown Optima Express IDX — Optima Express 8.6.0 - 8.7.5 - Author+ Stored XSS via faq_script
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L H R U H H H 6.8 .0024 13.2 —
AFFECTED
Product Versions Fixed
Optima Express IDX 8.6.0 – —
TIMELINE
Sep 23 Reserved by WPScan
Sep 27 Published (CNA: WPScan)
Sep 28 EXPLOIT PUBLISHED — CVE-2026-96899 (Unknown Optima Express IDX). Public exploit reference added.
Description
The Optima Express IDX WordPress plugin before 8.7.6 does not properly neutralise a script value submitted through one of its REST endpoints before storing it and echoing it into the document head when the post is rendered, allowing users with a role as low as author to perform Stored Cross-Site Scripting attacks.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| September 23, 2026 | Reserved | Reserved by WPScan |
| September 27, 2026 | Published | Published (CNA: WPScan) |
| September 28, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-96899 (Unknown Optima Express IDX). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Unknown | Optima Express IDX | — | 8.6.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-96899 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 Saturday, October 3, 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.