Clever Fox – One Click Website Importer by Nayra Themes <= 25.2.0 - Missing Authorization to arbitrary theme activation via clever-fox-activate-theme
Strategic Overview
- Status
- Patched in 25.2.1
- Affected Plugin
- Clever Fox
- Affected Version
<= 25.2.0- CVSS
- 5.4Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2023-6876
At a glance
CVE-2023-6876 is a medium-severity Missing Authorization vulnerability in the Clever Fox WordPress plugin, affecting versions <= 25.2.0. It carries a CVSS score of 5.4 (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 25.2.1; sites on affected versions should update now. Disclosed June 2024, reported by Lucio Sá.
Vulnerability Overview
The Clever Fox – One Click Website Importer by Nayra Themes plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'clever-fox-activate-theme' function in all versions up to, and including, 25.2.0. This makes it possible for authenticated attackers, with subscriber access and above, to modify the active theme, including to an invalid value which can take down the site.
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
Clever Fox <= 25.2.0 carries this weakness at clever-fox-activate-theme, and reaching it 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 Clever Fox the fix is 25.2.1: builds <= 25.2.0 are affected, anything from 25.2.1 onward is not.
Remediation
Update to version 25.2.1, 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: Clever Fox 25.2.1 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Clever Fox
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