Advanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update Action

Summary

CVECVE-2026-94267
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 06:17:08 UTC
Updated2026-10-23 06:17:08 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-94 Improper Control of Generation of Code ('Code Injection')

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Advanced Custom Fields Extended affected 0.9.2.8 semver Not specified
CNA Unknown Advanced Custom Fields Extended PRO affected 0.9.2.8 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/9c8f45c1-cd85-4a9c-be77-88801d8143ce [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Jakub Herman (en)

CNA: WPScan (en)

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