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Description

The WP Cost Estimation plugin for WordPress is vulnerable to arbitrary file uploads and deletion due to missing file type validation in the lfb_upload_form and lfb_removeFile AJAX actions in versions up to, and including, 9.642. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible. Additionally, the attacker can also delete files on the server such as database configuration files, subsequently uploading their own database files.

PUBLISHED Reserved 2026-01-07 | Published 2026-01-08 | Updated 2026-01-08 | Assigner Wordfence




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-434 Unrestricted Upload of File with Dangerous Type

Product status

Default status
unaffected

* (semver) before 9.644
affected

Timeline

2019-02-14:Disclosed

Credits

Mikey Veenstra finder

References

www.wordfence.com/...s-patched-in-wp-cost-estimation-plugin/ exploit

www.wordfence.com/...-95e3-4650-9dbf-118b4ba3abda?source=cve

www.wordfence.com/...s-patched-in-wp-cost-estimation-plugin/

www.zdnet.com/...mmercial-plugin-gets-exploited-in-the-wild/

wpscan.com/vulnerability/9219

www.acunetix.com/...-builder-multiple-vulnerabilities-9-642/

cve.org (CVE-2019-25296)

nvd.nist.gov (CVE-2019-25296)

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