CVE-2026-28008: WordPress OAuth Single Sign On – SSO (OAuth Client) plugin <= 7.0.0 - Broken Authentication vulnerability
Unauthenticated Broken Authentication in OAuth Single Sign On – SSO (OAuth Client) <= 7.0.0 versions.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress OAuth Single Sign On – SSO (OAuth Client)to a version that resolves this vulnerability.Fixed in 7.0.1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-28008?
The severity of CVE-2026-28008 is critical, with a score of 9.8.
How do I fix CVE-2026-28008?
To fix CVE-2026-28008, update the WordPress OAuth Single Sign On – SSO (OAuth Client) plugin to version 7.0.1 or later.
What types of authentication are affected by CVE-2026-28008?
CVE-2026-28008 affects unauthenticated requests, allowing attackers to exploit broken authentication.
Can CVE-2026-28008 lead to data exposure?
Yes, CVE-2026-28008 can lead to high levels of data exposure due to its ability to compromise authentication mechanisms.
Is there a workaround for CVE-2026-28008 if updating is not possible?
If immediate updates aren't possible, disable the vulnerable plugin to mitigate the risks associated with CVE-2026-28008.