Hi Piwigo users,
A major security issue has been fixed and we have released 3 new versions of Piwigo. Piwigo 2.5.6 and 2.6.5 only contain the security fix and 2.7.3 brings a few bug fixes as well, see Piwigo 2.7.3 Release Notes.
The issue has been reported by achn30 to Piwigo team. achn30 has kindly helped us to fix it with a more secure code. We thank him for that!
We strongly encourage you to update your Piwigo immediately! Follow the automatic upgrade procedure