CVE-2025-10647

High

Published: 19 September 2025

Published

19 September 2025

Modified

15 April 2026

KEV Added

—

Patch

—

CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0043 63.3th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-10647 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Wordpress (inferred from references). Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 36.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-10647 affects the Embed PDF for WPForms plugin for WordPress in all versions up to and including 1.1.5. The vulnerability is an arbitrary file upload flaw stemming from missing file type validation in the ajax_handler_download_pdf_media function. This issue, classified under CWE-434 (Unrestricted Upload of File with Dangerous Type), carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.

Authenticated attackers with Subscriber-level access or higher can exploit this vulnerability over the network with low complexity and no user interaction required. By leveraging the flawed AJAX handler, they can upload arbitrary files to the affected WordPress site's server, potentially enabling remote code execution if the uploaded files are crafted as web shells or other malicious executables.

Mitigation details are available in referenced advisories and patches. Wordfence provides a threat intelligence report on the vulnerability, while the WordPress plugin trac includes changeset 3364156, which patches the issue in the class-wpforms-field-pdf-viewer.php file. Site administrators should update to a fixed version of the Embed PDF for WPForms plugin via the official plugin page on WordPress.org.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-30304

Vulnerability details

The Embed PDF for WPForms plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the ajax_handler_download_pdf_media function in all versions up to, and including, 1.1.5. This makes it possible for authenticated attackers, with…

Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

CWE(s): CWE-434

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1105 Ingress Tool Transfer Command And Control

Adversaries may transfer tools or other files from an external system into a compromised environment.

attack.mitre.org →

T1505.003 Web Shell Persistence

Adversaries may backdoor web servers with web shells to establish persistent access to systems.

attack.mitre.org →

Why these techniques?

Arbitrary file upload (CWE-434) in public-facing WordPress plugin directly enables web shell deployment (T1505.003) via ingress of malicious files (T1105) after exploiting the application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1