Support » Plugin: Social » Certificate Verification failing

  • I was alerted to this issue on 12/25/2015 by a user who was trying to comment on a blog and clicked the “Sign in with Twitter” button.
    I am able to replicate his issue and receive the following error message:

    POST to failed: SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

    I am using Version 3.1.1 of Social by MailChimp in WordPress 4.4 at I have tried updating the wp certificate as described by a poster here No luck. I do not have any files in wp_content/plugins/mu_plugins that contain anything even close to resembling the lines

    add_filter('https_ssl_verify', '__return_false');
    add_filter('https_local_ssl_verify', '__return_false');

    as mentioned by another poster in the same topic above.

    My site DOES use SSL and as such I am using WordPress Force HTTPS plugin.

    We had users successfully post comments using their Twitter accounts on 12/24/2015.

    We did not change anything between those days as our offices were closed.

    I was not alerted to any updates that may or may not have happened over the holiday weekend, so I am really confused as to why this has started happening.

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