Auth bypass in Ckp267 Maxiblocks Builder | 17,000+ Design Assets, Patterns, Icons & Starter Sites

CVE-2026-2028

The MaxiBlocks Builder plugin for WordPress is vulnerable to arbitrary media file deletion due to insufficient file ownership validation on the 'maxi_remove_custom_image_size' AJAX action in all versions up to, and including, 2.1.8. This makes it possible for authenticated attackers, with Author-level access and above, to delete arbitrary files in the wp-content/uploads directory, including files uploaded by other users and administrators.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-2028: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-2028?
CVE-2026-2028 is a medium-severity vulnerability in Ckp267 Maxiblocks Builder | 17,000+ Design Assets, Patterns, Icons & Starter Sites, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-04-24.
How severe is CVE-2026-2028?
Medium severity. CVSS v3 base score is 5.3 out of 10.