CVE-2026-82183
High
Description
The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts.
SeverityHigh
CVSS8.1
Exploit probability—
ProductOAuth Single Sign On
PublishedSep 2, 2026
First seenSep 2, 2026
Weakness typeCWE-287Improper authentication
How to fix
Update
- OAuth Single Sign On7.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OAuth Single Sign On | 6.25.0 ≤ v < 7.0.1 | 7.0.1 |
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