CVE-2020-36715

Login/Signup Popup < 1.5 - Missing Authorization

2020-05-14 00:00
Jerome Bruandet

Strategic Overview

Status
Patched in 1.5
Affected Plugin
Login & Register Customizer – Forms, Popup, Profile & WooCommerce
Affected Version
< 1.5
CVSS
7.4High
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2020-36715
View all Login & Register Customizer – Forms, Popup, Profile & WooCommerce vulnerabilities

At a glance

CVE-2020-36715 is a high-severity Missing Authorization vulnerability in the Login & Register Customizer WordPress plugin, affecting versions < 1.5. It carries a CVSS score of 7.4 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.5; sites on affected versions should update now. Disclosed May 2020, reported by Jerome Bruandet.

Vulnerability Overview

The Login/Signup Popup plugin for WordPress is vulnerable to authorization bypass due to missing capability checks on several functions in versions up to, and including, 1.4. This makes it possible for authenticated attackers to inject arbitrary web scripts into the plugin settings that execute if they can successfully trick a user into performing an action such as clicking on a link.

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.

CWE-862: Missing Authorization

Reaching this weakness in Login & Register Customizer < 1.5 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 Login & Register Customizer the fix is 1.5: builds < 1.5 are affected, anything from 1.5 onward is not.

Remediation

Update to version 1.5, 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: Login & Register Customizer 1.5 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2020-36715https://www.wordfence.com/threat-intel/vulnerabilities/id/96d264fe-e7e1-4eec-b235-9d288bc5a22fhttps://nvd.nist.gov/vuln/detail/CVE-2020-36715

Related records

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