Getting 403 Forbidden error while saving the Admin Catalog -> Catalog configuration only. Remaining all configurations are saving without any error.
And also, When Save/Update the products which are having product images are also leads to 403 error. The Products which doesn't have Images are updating well.
I have verified Folder and File Permissions and those are have 755, 644 respectivly.
Can any one help me to solve this issue?