Login as User or Customer <= 3.8 - Unauthenticated Limited Admin Account Compromise
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Login as User or Customer — User Switching
- Affected Version
3.8- CVSS
- 8.1High
- Weakness type
- CWE-288 · Authentication Bypass Using an Alternate Path or Channel
- CVE
CVE-2023-7247
At a glance
CVE-2023-7247 is a high-severity Authentication Bypass Using an Alternate Path or Channel vulnerability in the Login as User or Customer WordPress plugin, affecting versions 3.8. It carries a CVSS score of 8.1 (reachable over the network; high confidentiality, integrity, availability impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed February 2024, reported by Dmitrii Ignatyev.
Vulnerability Overview
The Login as User or Customer plugin for WordPress is vulnerable to admin account compromise in version 3.8. This is due to the plugin not validating that the user switching back to the administrative account is the user who initiated the original login as another user. This makes it possible for unauthenticated attackers to access administrative user accounts when user switching is in progress by an administrator. Please note that this would be extremely difficult to exploit as it relies on the administrator switching to another user and the attacker knowing the admin users ID and the user ID of the user the admin switched to. It may be possible with social engineering.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-288: Authentication Bypass Using an Alternate Path or Channel
Reaching this weakness in Login as User or Customer 3.8 takes no account at all. Authentication bypass through an alternate path means the application has a second route to a protected action that skips the checks the primary route performs.
The protection on the main path becomes irrelevant, because the attacker simply uses the route that never asks. No fixed build of this plugin is recorded for Login as User or Customer yet, so installs running 3.8 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Login as User or Customer — User Switching
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