CVE-2026-16618

critical · 9.8

The Improve SEO WordPress plugin through 2.0.11 does not properly validate uploaded files, checking only the file content type while writing the file with the attacker-supplied extension into a publicly accessible directory, allowing unauthenticated users to upload executable PHP files and achieve remote code execution.

9.8

CVSS

0.5%

EPSS (exploit prob.)

39th

EPSS percentile

2026-08-04

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-434

References

https://wpscan.com/vulnerability/3754d4c0-1b67-49a4-a29a-7169446638d1/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-16618