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CVE-2026-15965

MaxUpload <= 1.4.0 - Unauthenticated Arbitrary File Upload via 'resumableFilename' Parameter PUBLISHED

Description (CNA)

The MaxUpload – Big File Uploads – Increase Maximum File Upload Size plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.4.0 via the handle_upload function. This is due to a filename-validation mismatch in the handle_upload function where extension and MIME checks are applied to the uploaded chunk's filename but not to the final assembled filename derived from the resumableFilename parameter. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.

Affected (CNA)

Vendor / productVersions
sadathimel / MaxUpload – Big File Uploads – Increase Maximum File Upload Sizeaffected 0 through 1.4.0

CWE

CWE-434

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.