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.
Does this matter?
Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Source
- security@wordfence.com
References
- https://github.com/maxi-blocks/maxi-blocks/commit/3dff1db57bfb4e6c14fa7fd42037178d1d0ce199
- https://plugins.trac.wordpress.org/browser/maxi-blocks/tags/2.1.7/core/class-maxi-image-crop.php#L44
- https://plugins.trac.wordpress.org/browser/maxi-blocks/trunk/core/class-maxi-image-crop.php#L44
- https://plugins.trac.wordpress.org/changeset/3476709/maxi-blocks/trunk/core/class-maxi-image-crop.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3476709%40maxi-blocks&new=3476709%40maxi-blocks&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f50c31df-56d0-4c34-a93c-56198fe91b36?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.