CVE-2026-118064
Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via featured_action
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.
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/897a812b-b84b-4422-9f3b-20402a0a8af5/
exploit · CNA: WPScan
References
- https://wpscan.com/vulnerability/897a812b-b84b-4422-9f3b-20402a0a8af5/CNA: WPScan · exploit, vdb-entry, technical-description
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