CVE-2023-6449

6.6 MEDIUM 2% exploit odds Fix listed

What it is

The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed in most cases. By default, the file will be deleted from the server immediately. However, in some cases, other plugins may make it possible for the file to live on the server longer. This can make remote code execution possible when combined with another vulnerability, such as local file inclusion.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2023-12-01 11:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 06:50 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.8% in the next 30 days (EPSS).
Severity: 6.6 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2023-12-01 11:15 UTC
Last modified: 2026-06-17 06:50 UTC
Exploit probability: 1.8% · EPSS, next 30 days
Weakness: CWE-434 · Unrestricted file upload
Record status: Modified

Affected

Rocklobster Contact Form 7 < 5.8.4

Attack profile CVSS 3.1 · 6.6

Attack vector: Network
Complexity: High
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-6449.md and follow it. Check whether this project is affected by CVE-2023-6449. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record