fix: address review feedback

Author: mtrezza

spec/vulnerabilities.spec.js

@@ -3075,6 +3075,7 @@ describe('(GHSA-fjxm-vhvc-gcmj) LiveQuery Operator Type Confusion', () => {
           challengeData: { anonymous: { token: '123456' } },
         }),
       }).catch(e => e);
+      expect(res.status).toBeGreaterThanOrEqual(400);
       expect(res.status).toBeLessThan(500);
     });
 
@@ -3092,6 +3093,7 @@ describe('(GHSA-fjxm-vhvc-gcmj) LiveQuery Operator Type Confusion', () => {
           challengeData: { anonymous: { token: '123456' } },
         }),
       }).catch(e => e);
+      expect(res.status).toBeGreaterThanOrEqual(400);
       expect(res.status).toBeLessThan(500);
     });
   });

src/Auth.js

@@ -526,7 +526,7 @@ const checkIfUserHasProvidedConfiguredProvidersForLogin = (
   const savedUserProviders = Object.keys(userAuthData)
     .map(provider => {
       const validator = config.authDataManager.getValidatorForProvider(provider);
-      if (!validator) {
+      if (!validator || !validator.adapter) {
         return null;
       }
       return { name: provider, adapter: validator.adapter };