Advanced Custom Fields: Extended 0.8.9.4 - 0.9.2.7 - Contributor+ XSS via Form Shortcode Attributes
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.
CVE-2026-94264
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-94264
Advanced Custom Fields: Extended
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Advanced Custom Fields: Extended PRO
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "Advanced Custom Fields: Extended",
"versions": [
{
"status": "affected",
"version": "0.8.9.4",
"lessThan": "0.9.2.8",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Unknown",
"product": "Advanced Custom Fields: Extended PRO",
"versions": [
{
"status": "affected",
"version": "0.8.9.4",
"lessThan": "0.9.2.8",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-94264
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52652 · Revision 1
- Added to Heist Feed
- Publisher date