Arvow AI SEO Writer < 1.5.4 - Unauthenticated Arbitrary Post Creation via Webhook Secret Type-Juggling

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16257
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 07:16:47 UTC
Updated2026-08-10 07:16:47 UTC
DescriptionThe Arvow AI SEO Writer WordPress plugin before 1.5.4 does not properly restrict access to one of its REST endpoints, whose only access control can be bypassed by unauthenticated users through type juggling when the Arvow AI SEO Writer WordPress plugin before 1.5.4 has not been configured, allowing them to create arbitrary posts and pages and to disclose author account and taxonomy information.

Risk And Classification

Problem Types: CWE-287 Improper Authentication

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Arvow AI SEO Writer affected 1.5.4 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/89c32854-1cf1-4fe9-a6d0-6244be2dcc03 [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: Pablo González Pérez (en)

CNA: Francisco José Ramírez Vicente and Iñigo Sánchez Enciso (en)

CNA: WPScan (en)

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