Vulnerability · Published Aug 13, 2026 · Assigned by Patchstack
CVE-2026-28008WordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.0.0 - Broken Authentication vulnerability
Critical 9.8
In plain English
A critical-severity authentication bypass by spoofing in OAuth Single Sign On – SSO (OAuth Client) from miniOrange. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| miniOrange | OAuth Single Sign On – SSO (OAuth Client) | n/a – through 7.0.0 |
Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H