Single Sign On For TNG <= 2.0.0 - Unauthenticated Privilege Escalation via Unverified Password Change
The Single Sign On For TNG plugin for WordPress is vulnerable to Authentication Bypass via unauthenticated password reset in all versions up to, and including, 2.0.0. This is due to the ssoprocess_ajax() function — registered on wp_ajax_nopriv_ssoprocess_ajax and therefore reachable without authentication — accepting an attacker-supplied email parameter with the setnewpassword operation and calling reset_password() on the resolved account without any ownership token, email confirmation link, or capability check. The sole guard is a call to check_ajax_referer(), which provides no authorization barrier because the ssoajaxnonce nonce is publicly broadcast on every front-end page via wp_localize_script() into the SSOPWDREQUIREMENT JavaScript object; since WordPress computes nonces for logged-out visitors against a shared anonymous session context, any unauthenticated visitor can scrape a valid nonce from the homepage and use it to authenticate the request. This makes it possible for unauthenticated attackers to change the password of any WordPress account, including administrator accounts, enabling complete site takeover.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Single Sign On For TNG | <= 2.0.0 | 2.1.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-620- Platform
- WordPress
- Package
Single Sign On For TNG- Disclosed
- 31.07.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 1d8d393e-764c-491d-8afb-7d4f8d0c387a - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Single Sign On For TNG
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 07.2026 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
Disclosures per year
- 2026: 2
-
Single Sign On For TNG <= 2.0.0 - Unauthenticated Privilege Escalation via Unverified Password Change this entry
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