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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.

PUBLISHED Reserved 2026-02-05 | Published 2026-04-24 | Updated 2026-04-24 | Assigner Wordfence




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

Any version
affected

Timeline

2026-04-16:Vendor Notified
2026-04-23:Disclosed

Credits

Teerachai Somprasong finder

References

www.wordfence.com/...-56d0-4c34-a93c-56198fe91b36?source=cve

plugins.trac.wordpress.org/...core/class-maxi-image-crop.php

plugins.trac.wordpress.org/...core/class-maxi-image-crop.php

github.com/...ommit/3dff1db57bfb4e6c14fa7fd42037178d1d0ce199

plugins.trac.wordpress.org/...i-blocks&sfp_email=&sfph_mail=

plugins.trac.wordpress.org/...core/class-maxi-image-crop.php

cve.org (CVE-2026-2028)

nvd.nist.gov (CVE-2026-2028)

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