CVE-2026-118064

Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via featured_action

Published Nov 13, 2026 CVSS n/a EPSS n/a KEV · Not listed
Description
The Advance Guest Post WordPress plugin through 1.9 does not properly restrict or validate file uploads, authorizing an upload action with a nonce exposed to every front-end visitor and checking only a file's leading bytes, allowing unauthenticated users to upload arbitrary PHP files and execute code remotely.

Successful exploitation additionally requires the target to run PHP 7.x; on PHP 8.0 and later the vulnerable code path raises a fatal error before the file is written.

Analysis

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Remediation

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Tracking

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Advisories

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History
Type Values Removed Values Added
Description The Advance Guest Post WordPress plugin through 1.9 does not properly restrict or validate file uploads, authorizing an upload action with a nonce exposed to every front-end visitor and checking only a file's leading bytes, allowing unauthenticated users to upload arbitrary PHP files and execute code remotely. Successful exploitation additionally requires the target to run PHP 7.x; on PHP 8.0 and later the vulnerable code path raises a fatal error before the file is written.
Title Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via featured_action
References

Subscriptions

No data.

Weaknesses

No weakness.

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 13, 2026, 6:00 AM
Reserved
Oct 27, 2026, 3:38 PM
Status
Received
Published
Nov 13, 2026, 6:16 AM
Modified
Nov 13, 2026, 6:16 AM