Vulnerability · Published Sep 30, 2025 · Assigned by Wordfence
CVE-2025-9762Post By Email <= 1.0.4b - Unauthenticated Arbitrary File Upload via Email Attachments
Critical 9.8
In plain English
A critical-severity OS command injection in Post By Email from westi. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 45.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| westi | Post By Email | 0 – through 1.0.4b |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H