Login as User <= 1.0.3 - Authenticated (Subscriber+) Privilege Escalation via 'oclaup_original_admin' Cookie
The Login as User plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.0.3. This is due to the handle_return_to_admin() function trusting a client-controlled cookie (oclaup_original_admin) to determine which user to authenticate as, without any server-side verification that the cookie value was legitimately set during an admin-initiated user switch. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to administrator by setting the oclaup_original_admin cookie to an administrator's user ID and triggering the "Return to Admin" functionality.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Login as User – Switch User & WooCommerce Login as Customer | <= 1.0.1 | no fix |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-639- Platform
- WordPress
- Package
Login as User – Switch User & WooCommerce Login as Customer- Disclosed
- 14.04.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - c0c74d48-6cfc-4899-bd2c-4a80b1f6e05f - Wordfence Intelligence
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Vulnerability history: Login as User – Switch User & WooCommerce Login as Customer
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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