Vulnerability Intelligence Report
Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes
CVE-2026-94264
The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8, Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 does not validate or escape some of its form shortcode attributes, which can be pointed at values taken from the visitor's own request and are then output without escaping, allowing users with a role as low as contributor to have arbitrary script run in the browser of anyone led to open a crafted link or page, including a logged-in administrator. This is an incomplete fix for CVE-2023-5292, whose deny-list covers only the three HTML wrapper attributes.
No Active Exploit Signals
CVSS Base Score
6.8
MEDIUM
Exploitability:1.0
Impact Score:5.9
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗CWE-79 Cross-Site Scripting (XSS)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Unknown | Advanced Custom Fields: Extended | 0.8.9.4 < 0.9.2.8 (affected) |
| Unknown | Advanced Custom Fields: Extended PRO | 0.8.9.4 < 0.9.2.8 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | WPScan · Vendor · France |
| Reserved | 2026-09-21T09:05:55 |
| Published | 2026-10-23T06:00:21 |
| Last Updated | 2026-10-23T10:46:02 |
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