RCE in Smush
CVE-2026-19223
The Smush WordPress plugin before 4.3.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.002 (6.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Smush
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-19223?
- CVE-2026-19223 is a high-severity vulnerability in Smush, classified under Code Injection. CVSS score: 7.2/10. Published 2026-08-27.
- How severe is CVE-2026-19223?
- High severity. CVSS v3 base score is 7.2 out of 10.