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.
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Affected Vendors & Products
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Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 13 Nov 2026 06:15:00 +0000
| 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 |
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Projects
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MITRE
Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-11-13T06:00:06.947Z
Reserved: 2026-10-27T15:38:33.514Z
Link: CVE-2026-118063
Vulnrichment
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NVD
Status : Received
Published: 2026-11-13T06:16:52.807
Modified: 2026-11-13T06:16:52.807
Link: CVE-2026-118063
Redhat
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OpenCVE Enrichment
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Weaknesses
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