Optima Express 8.6.0 - 8.7.5 - Author+ Stored XSS via faq_script (CVE-2026-96899) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-96899

Optima Express 8.6.0 - 8.7.5 - Author+ Stored XSS via faq_script

Answer in brief

CVE-2026-96899 records a Unknown severity vulnerability in Optima Express 8.6.0 - 8.7.5 - Author+ Stored XSS via faq_script. The current sources do not mark it as known exploited. The current feed maps Unknown/Optima Express IDX (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 27, 2026Updated Sep 27, 2026Source checked Sep 27, 2026First seen by HOL Sep 27, 2026Material review Sep 27, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Optima Express IDX (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Optima Express IDXgeneric	>=8.6.0 <8.7.6	8.7.6

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Optima Express IDX.
Review the reported fix. Update Unknown/Optima Express IDX to 8.7.6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 27, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.