Is CVE-2026-5718 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-5718 being exploited in the wild.

How severe is CVE-2026-5718?

High severity, with a CVSS score of 8.1, published 17 April 2026.

Which products and versions are affected?

CodePeople Drag and Drop Multiple File Upload for Contact Form 7 up to, and including, 1.3.9.7.

Is there a fix for CVE-2026-5718?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-5718 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-5718?

Check whether you run CodePeople Drag and Drop Multiple File Upload for Contact Form 7 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-5718: WordPress Drag and Drop Multiple File Upload arbitrary file upload

CVE-2026-5718 · Severity: high · CVSS 8.1 · Published 2026-04-17

A popular WordPress plugin used for adding file upload capabilities to contact forms is vulnerable to a security flaw that allows unauthorized file uploads. An attacker can exploit this to upload malicious scripts, such as PHP files, directly to the web server. If successful, this could lead to a complete takeover of the website, allowing the attacker to steal data, modify content, or disrupt operations.

Technologies: CodePeople Drag and Drop Multiple File Upload for Contact Form 7. Vendors: CodePeople.

Quick answers

Is CVE-2026-5718 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-5718 being exploited in the wild.
How severe is CVE-2026-5718?: High severity, with a CVSS score of 8.1, published 17 April 2026.
Which products and versions are affected?: CodePeople Drag and Drop Multiple File Upload for Contact Form 7 up to, and including, 1.3.9.7.
Is there a fix for CVE-2026-5718?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-5718 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-5718?: Check whether you run CodePeople Drag and Drop Multiple File Upload for Contact Form 7 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is classified as an unrestricted file upload (CWE-434) due to two primary flaws in the plugin's validation logic. First, when custom blacklist types are configured, the plugin replaces the default dangerous extension denylist instead of merging with it, potentially leaving dangerous extensions like .php allowed. Second, the wpcf7_antiscript_file_name() sanitization function can be bypassed by using filenames containing non-ASCII characters. These flaws allow unauthenticated attackers to upload arbitrary PHP files via the network. While a partial patch was released in version 1.3.9.7, a bypass was subsequently discovered, necessitating further updates.

Affected products

CodePeople Drag and Drop Multiple File Upload for Contact Form 7 up to, and including, 1.3.9.7

Timeline

2026-04-17: disclosed
2026-04-17: advisory
2026-05-26: other: Advisory updated to include patch bypass information and version 1.3.9.7.

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.