CVE-2021-25059

Download Plugin <= 1.6.2 - Missing Authorization and Sensitive Information Exposure

2022-11-02 00:00
apple502j

Strategic Overview

Status
Patched in 2.0.0
Affected Plugin
Download Plugin
Affected Version
<= 1.6.2
CVSS
6.5Medium
Weakness type
CWE-639 · Authorization Bypass Through User-Controlled Key
CVE
CVE-2021-25059
View all Download Plugin vulnerabilities

At a glance

CVE-2021-25059 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the Download Plugin WordPress plugin, affecting versions <= 1.6.2. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 2.0.0; sites on affected versions should update now. Disclosed November 2022, reported by apple502j.

Vulnerability Overview

The Download Plugin plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 1.6.2 due to missing capability checks on the dpwap_plugin_multiple_download_func function. This makes it possible for authenticated attackers with subscriber-level attackers to create and download arbitrary content as backup zip files in the wp-content folder.

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 interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-639: Authorization Bypass Through User-Controlled Key

Reaching this weakness in Download Plugin <= 1.6.2 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 Download Plugin the fix is 2.0.0: builds <= 1.6.2 are affected, anything from 2.0.0 onward is not.

Remediation

Update to version 2.0.0, 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: Download Plugin 2.0.0 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-25059https://www.wordfence.com/threat-intel/vulnerabilities/id/634bec5f-e511-4047-9a46-09147ccc3a25https://nvd.nist.gov/vuln/detail/CVE-2021-25059

Related records

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