Chankhe <= 1.0.5 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Activation
Strategic Overview
- Status
- Patched in 1.0.6
- Affected Theme
- Chankhe
- Affected Version
<= 1.0.5- CVSS
- 4.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2023-28416
At a glance
CVE-2023-28416 is a medium-severity Missing Authorization vulnerability in the Chankhe WordPress theme, affecting versions <= 1.0.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.0.6; sites on affected versions should update now. Disclosed March 2023, reported by Dave Jong.
Vulnerability Overview
The Chankhe theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the activate_plugin function called via the wp_ajax_chankhe_activate_plugin AJAX action in versions up to, and including, 1.0.5. This makes it possible for authenticated attackers with minimal permissions, such as subscribers, to activate arbitrary plugins.
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 Chankhe <= 1.0.5 takes an account at Subscriber level or above. 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 Chankhe the fix is 1.0.6: builds <= 1.0.5 are affected, anything from 1.0.6 onward is not.
Remediation
Update to version 1.0.6, 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: Chankhe 1.0.6 closes this, and updating the theme is the step that ends it.
- Login Security
- Alerts
External References
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