CVE-2025-9762

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.

CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://plugins.trac.wordpress.org/browser/post-by-email/tags/1.0.4b/class-post-by-email.php#L702 https://www.wordfence.com/threat-intel/vulnerabilities/id/885eb923-8e69-416b-8494-a42a9465cfe0?source=cve

Frequently Asked Questions

What is CVE-2025-9762? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-9762? +

CVE-2025-9762 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

How do I check if I'm vulnerable to CVE-2025-9762? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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