CVE-2024-32792

Hummingbird <= 3.7.3 - Missing Authorization

2024-04-22 00:00
Peng Zhou

Strategic Overview

Status
Patched in 3.7.4
Affected Plugin
Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN
Affected Version
<= 3.7.3
CVSS
5.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2024-32792
View all Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN vulnerabilities

At a glance

CVE-2024-32792 is a medium-severity Missing Authorization vulnerability in the Hummingbird Performance WordPress plugin, affecting versions <= 3.7.3. 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 3.7.4; sites on affected versions should update now. Disclosed April 2024, reported by Peng Zhou.

Vulnerability Overview

The Hummingbird plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on several functions in the /admin/class-ajax.php file in versions up to, and including, 3.7.3. This makes it possible for unauthenticated attackers to perform unauthorized actions like clearing cache.

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-862: Missing Authorization

Reaching this weakness in Hummingbird Performance <= 3.7.3 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Hummingbird Performance the fix is 3.7.4: builds <= 3.7.3 are affected, anything from 3.7.4 onward is not.

Remediation

Update to version 3.7.4, 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: Hummingbird Performance 3.7.4 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-32792https://www.wordfence.com/threat-intel/vulnerabilities/id/0bd35ef1-ed28-44db-a1f6-74bc83974c71https://nvd.nist.gov/vuln/detail/CVE-2024-32792

Related records

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