Our phpBB3 forums: https://www.vintagethunderbirdclub.net/phpBB3/index.php
are hosted on OLM.net
Per the ACP:
Database server: MySQL(i) 5.6.39
PHP version: 5.6.32
Board version: 3.2.2
I'm getting miscellaneous reports that user A will login and suddenly notice that they are logged in a user B. Once this happens, they can navigate as user B, make posts, send PMs, etc. I'm not sure if the impacted users are doing a fresh login or if they are returning to a saved login.
I tried changing the cookie name and then purging the cache and all logins, but I'm still getting these reports.
Note that I had 1-2 reports of this going back several versions (seemed to impact only one user), but had not heard of it happening again until yesterday and then there were multiple reports. I'm not sure if this is a phpBB3 thing or an issue with the server caching or something else.
Has anyone else had a similar experience or aware of a misconfiguration that could trigger this?
Thanks for any insights.