Plugins · maxupload-upload-larger-files-easily · data as of 2026-11-04
Is MaxUpload safe? Known vulnerabilities and latest version
- Status
- Closed 2026-07-31
- Known issues on record
- 1
- Unpatched in latest
- 0
What to do
- Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
- Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI, once you have a replacement: wp plugin deactivate maxupload-upload-larger-files-easily && wp plugin delete maxupload-upload-larger-files-easily
Check your version
Known vulnerabilities
1 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 1 record(s) do not state which versions are affected.
high 8.8 CVE-2026-15965 · published 2026-08-15
Arbitrary file upload in MaxUpload (1.4.0 and older)
- Affected
- 1.4.0 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
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.
Recent activity
- 2026-07-31 — closed on wordpress.org (Security Issue).
- 2026-08-15 — Arbitrary file upload disclosed (CVE-2026-15965), fix version not stated.
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Browse vulnerabilities
Types found in this plugin: Arbitrary file upload (1)
Where this data comes from
- Version, last update, installs, closure: wordpress.org/plugins/maxupload-upload-larger-files-easily (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
<a href="https://laskyr.com/plugins/maxupload-upload-larger-files-easily"><img src="https://laskyr.com/plugins/maxupload-upload-larger-files-easily/badge.svg" alt="MaxUpload vulnerability status"></a>