CVE-2026-118063

What it is

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.

At a glance

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-11-13 06:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-11-13 15:45 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: not scored yet.
• Severity: not scored yet.
• Fix: none linked yet, which raises it.

Details

Published

2026-11-13 06:16 UTC

Last modified

2026-11-13 15:45 UTC

Record status

Deferred

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-118063.md and follow it. Check whether this project is affected by CVE-2026-118063. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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