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High 8.1Published Sep 2, 2026
CVE-2026-82183OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion
Updated under an hour ago ()
Does this affect you?
It affects Unknown OAuth Single Sign On. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.1 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown OAuth Single Sign On unknown:oauth_single_sign_on (from the name) | from 6.25.0 before 7.0.1 | CNA record |
References
- https://wpscan.com/vulnerability/bc7c18f2-4e8c-47a3-a972-6162fd27aaca/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.