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Description

The Post By Email plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the save_attachments function in all versions up to, and including, 1.0.4b. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

PUBLISHED Reserved 2025-08-31 | Published 2025-09-30 | Updated 2025-09-30 | 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-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unaffected

*
affected

Timeline

2025-08-16:Discovered
2025-09-29:Disclosed

Credits

Jonas Benjamin Friedli finder

References

www.wordfence.com/...-8e69-416b-8494-a42a9465cfe0?source=cve

plugins.trac.wordpress.org/...1.0.4b/class-post-by-email.php

cve.org (CVE-2025-9762)

nvd.nist.gov (CVE-2025-9762)

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