HashThemes Demo Importer <= 1.1.1 - Missing Authorization to Database Wipe
Strategic Overview
- Status
- Patched in 1.1.2
- Affected Plugin
- HashThemes Demo Importer
- Affected Version
<= 1.1.1- CVSS
- 8.1High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2021-39333
At a glance
CVE-2021-39333 is a high-severity Missing Authorization vulnerability in the HashThemes Demo Importer WordPress plugin, affecting versions <= 1.1.1. It carries a CVSS score of 8.1 (reachable over the network; low attack complexity; high integrity, availability impact). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 1.1.2; sites on affected versions should update now. Disclosed October 2021, reported by Ram.
Vulnerability Overview
The Hashthemes Demo Importer Plugin for WordPress contained several AJAX functions which relied on a nonce which was visible to all logged-in users for access control in versions up to, and including 1.1.1. This made it possible for authenticated attackers with minimal permissions, such as a subscriber, to execute a function that dropped nearly all a sites database tables and removed the contents of wp-content/uploads.
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 integrity, availability.
CWE-862: Missing Authorization
Reaching this weakness in HashThemes Demo Importer <= 1.1.1 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 HashThemes Demo Importer the fix is 1.1.2: builds <= 1.1.1 are affected, anything from 1.1.2 onward is not.
Remediation
Update to version 1.1.2, 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: HashThemes Demo Importer 1.1.2 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in HashThemes Demo Importer
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