What is CVE-2026-5821?

CVE-2026-5821 is a high-severity vulnerability in Elemntor Image Optimizer – Optimize Images And Convert To Webp Or Avif, classified under External Control of File Name or Path. CVSS score: 8.1/10. Published 2026-07-02.

How severe is CVE-2026-5821?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Elemntor Image Optimizer – Optimize Images And Convert To Webp Or Avif

CVE-2026-5821

The Image Optimizer plugin for WordPress is vulnerable to arbitrary file deletion in versions up to and including 1.7.4. This is due to insufficient path validation in the Image_Backup::remove() function where backup file paths stored in p…

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Elemntor Image Optimizer – Optimize Images And Convert To Webp Or Avif — versions 0

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

Frequently asked questions

What is CVE-2026-5821?: CVE-2026-5821 is a high-severity vulnerability in Elemntor Image Optimizer – Optimize Images And Convert To Webp Or Avif, classified under External Control of File Name or Path. CVSS score: 8.1/10. Published 2026-07-02.
How severe is CVE-2026-5821?: High severity. CVSS v3 base score is 8.1 out of 10.