OAuth Single Sign On – SSO (OAuth Client) <= 7.1.2 - Unauthenticated Authentication Bypass
The OAuth Single Sign On – SSO (OAuth Client) plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 7.1.2. This is due to missing enforcement of the email-verification claim when the claim is absent from the IdP response, because the old inline check was gated on isset($resource_owner[$idp_email_verified_key]) and skipped silently when the claim was not present. This makes it possible for unauthenticated attackers to gain access to an account without a verified email address by authenticating through an OAuth provider that omits the email-verification claim from its response, causing the verification check to be silently bypassed. The 'email verified' check must be enabled in the plugin settings (mo_oauth_email_verify_check).
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Wtyczka WordPress | OAuth Single Sign On – SSO (OAuth Client) | <= 7.1.2 | 7.1.3 |
Odnośniki
- Wektor CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Słabość (CWE)
CWE-287- Platforma
- WordPress
- Paczka
OAuth Single Sign On – SSO (OAuth Client)- Ujawniono
- 30.09.2026
- Aktualizacja
- 11.10.2026 10:23
Źródła i licencje
Wordfence Intelligence - d61a1e57-9285-437f-a6b1-48e553c49533 - Wordfence Intelligence
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Historia podatności: OAuth Single Sign On – SSO (OAuth Client)
Wszystkie opisane podatności tej paczki (Wtyczka WordPress), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.
- Wszystkich wpisów
- 13
- Pierwsza → ostatnia
- 08.2021 09.2026
- Bez poprawki
- 0
- Wykorzystywana w atakach
- 0
Rozkład istotności
- Krytyczna 1
- Wysoka 4
- Średnia 8
Ujawnienia w latach
- 2021: 1
- 2022: 2
- 2023: 3
- 2024: 1
- 2025: 2
- 2026: 4
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OAuth Single Sign On – SSO (OAuth Client) <= 7.1.2 - Unauthenticated Authentication Bypass ten wpis
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