What is CVE-2025-9762?

CVE-2025-9762 is a critical-severity vulnerability in Westi Post By Email, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-09-30.

How severe is CVE-2025-9762?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-9762 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Westi Post By Email

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.007 (48.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Westi Post By Email — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-9762?: CVE-2025-9762 is a critical-severity vulnerability in Westi Post By Email, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-09-30.
How severe is CVE-2025-9762?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-9762 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.