CVE-2026-118063
Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via gallery_action
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Advance Guest Post Unknown |
≥ 0; ≤ 1.9 (affected, semver)
Other versions: unknown |
CNA: WPScan |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
- https://wpscan.com/vulnerability/45ea832a-9ed9-4f75-bc84-1b09794d362a/
exploit · CNA: WPScan
References
- https://wpscan.com/vulnerability/45ea832a-9ed9-4f75-bc84-1b09794d362a/CNA: WPScan · exploit, vdb-entry, technical-description
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