CVE-2026-94264
Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes
Unscored
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.
Assigner
WPScan
WPScan
Published
2026-10-23
2026-10-23
Updated
2026-10-23
2026-10-23
Reserved
2026-09-21
2026-09-21
Affected
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Advanced Custom Fields: Extended | 0.8.9.4 to < 0.9.2.8 (affected)
others: unaffected |
| Unknown | Advanced Custom Fields: Extended PRO | 0.8.9.4 to < 0.9.2.8 (affected)
others: unaffected |
References
- https://wpscan.com/vulnerability/4475b8a6-0d25-49b2-b973-5e19b8958595/ exploitvdb-entrytechnical-description
Full CVE JSON record (5.2)
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Advanced Custom Fields: Extended",
"vendor": "Unknown",
"versions": [
{
"lessThan": "0.9.2.8",
"status": "affected",
"version": "0.8.9.4",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Advanced Custom Fields: Extended PRO",
"vendor": "Unknown",
"versions": [
{
"lessThan": "0.9.2.8",
"status": "affected",
"version": "0.8.9.4",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Karthik Ramakrishnan"
},
{
"lang": "en",
"type": "coordinator",
"value": "WPScan"
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s 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.\nThis is an incomplete fix for CVE-2023-5292, whose deny-list covers only the three HTML wrapper attributes."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-79 Cross-Site Scripting (XSS)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T06:00:21.070Z",
"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"shortName": "WPScan"
},
"references": [
{
"tags": [
"exploit",
"vdb-entry",
"technical-description"
],
"url": "https://wpscan.com/vulnerability/4475b8a6-0d25-49b2-b973-5e19b8958595/"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes",
"x_generator": {
"engine": "WPScan CVE Generator"
}
}
},
"cveMetadata": {
"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
"assignerShortName": "WPScan",
"cveId": "CVE-2026-94264",
"datePublished": "2026-10-23T06:00:21.070Z",
"dateReserved": "2026-09-21T09:05:55.313Z",
"dateUpdated": "2026-10-23T06:00:21.070Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}