Stored XSS via unsanitized faq_script output
Published Sep 27, 2026 · Updated Sep 27, 2026
Stored XSS in Optima Express IDX 8.6.0 through 8.7.5 allows remote authenticated users to execute script through a REST endpoint. The endpoint stores the faq_script value without neutralizing it, and the plugin echoes that value into the document head when the post renders. Author-level access is sufficient, and the injected script runs in the affected site's origin when visitors view the post.
Summary
What happened
Stored XSS in Optima Express IDX 8.6.0 through 8.7.5 allows remote authenticated users to execute script through a REST endpoint. The endpoint stores the faq_script value without neutralizing it, and the plugin echoes that value into the document head when the post renders. Author-level access is sufficient, and the injected script runs in the affected site's origin when visitors view the post.
The record
- CVE
- CVE-2026-96899
- Published
- Sep 27, 2026
- Updated
- Sep 27, 2026
- Vendor
- iHomefinder, Inc.
- Product
- Optima Express IDX
- Classifications
- T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 27, 2026CVE publishedPublication date reported by the CVE source.
- Sep 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=8.6.0 <8.7.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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