ModSecurity was blocking the execution of “Add Gallery / images” on my hosting package.
I disabled ModSecurity to troubleshoot and NextGen Gallery worked, this was not an acceptable fix because I would lose a layer of protection against various attacks.
I opted to migrate to another gallery plugin, in the process I did lose some functionality.
Depending on your hosting package options are available especially if you have dedicated hosting.
1. Contact your host provider to add a modsecurity rule to allow full access from a specific IP address.
2. If you manage your own hosting package, https://support.cpanel.net/hc/en-us/articles/360058157433-How-to-whitelist-an-IP-address-in-ModSecurity
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This reply was modified 3 years, 8 months ago by z3ya.
