Arbitrary File Upload Vulnerability in Post By Email Plugin for WordPress
CVE-2025-9762

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Post By Email
Vendor
CVE Published:
30 September 2025

What is CVE-2025-9762?

The Post By Email plugin for WordPress is susceptible to arbitrary file uploads due to insufficient file type validation in the save_attachments function. This vulnerability affects all versions of the plugin up to and including version 1.0.4b. As a result, unauthenticated attackers have the potential to upload unauthorized files to the server hosting the affected WordPress site, possibly leading to remote code execution. Website administrators should promptly update to the latest version of the plugin and review their security configurations to mitigate the risks.

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Deploy the Patch

Affected Version(s)

Post By Email * <= 1.0.4b

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/post-by-email/...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jonas Benjamin Friedli
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