CVE-2026-118063

Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via gallery_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 validate uploaded files, relying on a case-sensitive and incomplete extension check that unauthenticated users can trivially bypass, allowing them to upload arbitrary files, including executable PHP variants, into a web-reachable directory, which can lead to remote code execution depending on the server configuration.

Remediation

No solution or workaround provided in the CVE record

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 validate uploaded files, relying on a case-sensitive and incomplete extension check that unauthenticated users can trivially bypass, allowing them to upload arbitrary files, including executable PHP variants, into a web-reachable directory, which can lead to remote code execution depending on the server configuration.
Title Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via gallery_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