CVE-2022-3282

Drag and Drop Multiple File Upload – Contact Form 7 <= 1.3.6.4 - File Upload Size Limit Bypass

2022-09-26 00:00
Sanjay Das Payatu

Strategic Overview

Status
Patched in 1.3.6.5
Affected Plugin
Drag and Drop Multiple File Upload for Contact Form 7
Affected Version
<= 1.3.6.4
CVSS
5.3Medium
Weakness type
CWE-639 · Authorization Bypass Through User-Controlled Key
CVE
CVE-2022-3282
View all Drag and Drop Multiple File Upload for Contact Form 7 vulnerabilities

At a glance

CVE-2022-3282 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin, affecting versions <= 1.3.6.4. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.3.6.5; sites on affected versions should update now. Disclosed September 2022, reported by Sanjay Das Payatu.

Vulnerability Overview

The Drag and Drop Multiple File Upload – Contact Form 7 plugin for WordPress is vulnerable to File Upload Size Limit Bypass in versions up to, and including, 1.3.6.4. This is due to the plugin accepting the file size limit as a POST parameter. This makes it possible for attackers to upload large files.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-639: Authorization Bypass Through User-Controlled Key

Reaching this weakness in Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.6.4 takes a caller who can reach the endpoint. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.

Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For Drag and Drop Multiple File Upload for Contact Form 7 the fix is 1.3.6.5: builds <= 1.3.6.4 are affected, anything from 1.3.6.5 onward is not.

Remediation

Update to version 1.3.6.5, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Drag and Drop Multiple File Upload for Contact Form 7 1.3.6.5 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-3282https://www.wordfence.com/threat-intel/vulnerabilities/id/6fd46539-a55e-45ab-93b2-6a1703a91271https://nvd.nist.gov/vuln/detail/CVE-2022-3282

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C