CVE-2025-9762 Post By Email <= 1.0.4b - Unauthenticated Arbitrary File Upload via Email Attachments
Unauthenticated attackers can upload arbitrary files via email attachments, potentially leading to remote code execution on the WordPress site.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-9762?
CVE-2025-9762 is a critical vulnerability in westi Post By Email, published on 30 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-78
Which versions are affected by CVE-2025-9762?
How do I fix CVE-2025-9762?
No fix has been published for CVE-2025-9762 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-9762 being exploited?
There is no known exploitation of CVE-2025-9762 in the wild and no public exploit code.
Sources
Also known as GHSA-42x6-84fc-386q.