CVE-2026-5617
Login as User <= 1.0.3 - Authenticated (Subscriber+) Privilege Escalation via 'oclaup_original_admin' Cookie
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 66% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
royalnavneet · Login as User – Switch User & WooCommerce Login as Customer
- affected ≤ 1.0.1
References (5)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c0c74d48-6cfc-4899-bd2c-4a80b1f6e05f?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/one-click-login-as-user/trunk/includes/class-login-handler.php#L45 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L45 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L50 (opens in a new tab)
- https://wordpress.org/plugins/one-click-login-as-user/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-5617)Record last updated .