CVE-2026-5364
Drag and Drop File Upload for Contact Form 7 <= 1.1.3 - Unauthenticated Arbitrary File Upload via sanitize_file_name Bypass
Description
The Drag and Drop File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.1.3. This is due to the plugin extracting the file extension before sanitization occurs and allowing the file type parameter to be controlled by the attacker rather than being restricted to administrator-configured values, which when combined with the fact that validation occurs on the unsanitized extension while the file is saved with a sanitized extension, allows special characters like '$' to be stripped during the save process. This makes it possible for unauthenticated attackers to upload arbitrary PHP files and potentially achieve remote code execution, however, an .htaccess file and name randomization is in place which restricts real-world exploitability.
INFO
Published Date :
April 24, 2026, 6:16 a.m.
Last Modified :
April 24, 2026, 6:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-5364
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update the Drag and Drop File Upload plugin.
- Apply vendor patches for version 1.1.3.
- Restrict file types during upload.
- Sanitize file extensions rigorously.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5364.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5364 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5364
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5364 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5364 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Apr. 24, 2026
Action Type Old Value New Value Added Description The Drag and Drop File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.1.3. This is due to the plugin extracting the file extension before sanitization occurs and allowing the file type parameter to be controlled by the attacker rather than being restricted to administrator-configured values, which when combined with the fact that validation occurs on the unsanitized extension while the file is saved with a sanitized extension, allows special characters like '$' to be stripped during the save process. This makes it possible for unauthenticated attackers to upload arbitrary PHP files and potentially achieve remote code execution, however, an .htaccess file and name randomization is in place which restricts real-world exploitability. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-434 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/tags/1.1.2/backend/index.php#L147 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/tags/1.1.2/backend/index.php#L158 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/tags/1.1.2/backend/index.php#L181 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/tags/1.1.2/frontend/index.php#L15 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/trunk/backend/index.php#L147 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/trunk/backend/index.php#L158 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/trunk/backend/index.php#L181 Added Reference https://plugins.trac.wordpress.org/browser/drag-and-drop-file-upload-for-contact-form-7/trunk/frontend/index.php#L15 Added Reference https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3498020%40drag-and-drop-file-upload-for-contact-form-7&new=3498020%40drag-and-drop-file-upload-for-contact-form-7&sfp_email=&sfph_mail= Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/0548608d-17d5-46f4-9d64-6e3b0552bf9d?source=cve