If you’re using plugin, update to 3.5.3 both free and Pro plugins.
You can get more information in their email:
https://mailchi.mp/warfareplugins/urgent-message-03212019-1805
The issue is being actively exploited by hackers.
Just a quick recap:
You can also manually download and install these updates directly via these links:
Social Warfare:
https://warfareplugins.com/updates/social-warfare/social-warfare.zipSocial Warfare Pro:
https://warfareplugins.com/updates/social-warfare-pro/social-warfare-pro.zipIf you are not able to immediately apply this update we recommend that you disable Social Warfare and Social Warfare Pro until you can apply the V3.5.3 update.