Advance Guest Post <= 1.9 - Unauthenticated Arbitrary File Upload via featured_action
Historical advisory recorded 13 Nov 2026 06:55:02 UTC. Read the latest advisory.
cve-program · CVE-2026-118064
PublishedThe 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.
Read the publisher's advisoryAffected versions, risk and source history
cve-program · CVE-2026-118064
PublishedAdvance 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.
- Source published
- 13 Nov 2026 06:00:07 UTC
- Source modified
- 13 Nov 2026 06:00:07 UTC
- Saved here
- 13 Nov 2026 06:55:02 UTC
- Source terms
- CVE Program Terms of Use
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