We are using wordpress one login saml plugin. All of a sudden the adfs login stopped working. On checking adfs logs it is throwing below error:
MICROSOFT.IDENTITYSERVER.SERVICE.SECURITYTOKENSERVICE.REVOCATIONVALIDATIONEXCEPTION
We checked service provider certificate is valid and not expired or revoked. We are clueless what could be the issue and at which end is it ons ervice provider end or idp end and how to solve it.