Advanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update Action
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 perform any capability check when updating a post through one of its front-end form actions, allowing unauthenticated visitors to overwrite arbitrary posts, including the ones in which the site stores its own field definitions, which in turn leads to arbitrary code execution on the server. Exploitation requires the site to publish a form whose post-update action maps both its target and its content to visitor-submitted values.
CVE-2026-94267
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-2026-94267
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",
"lessThan": "0.9.2.8",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Unknown",
"product": "Advanced Custom Fields: Extended PRO",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.9.2.8",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-94267
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52651 · Revision 1
- Added to Heist Feed
- Publisher date