EyouCMS arcpagelist Ajax.php unserialize deserialization

A flaw has been found in EyouCMS up to 1.7.7. The impacted element is the function unserialize of the file application/api/controller/Ajax.php of the component arcpagelist Handler. Executing a manipulation of the argument attstr can lead to deserialization. The attack can be launched remotely. The exploit has been published and may be used. The vendor is "[a]cknowledging the existence of the vulnerability, we have completed the fix and will release a new version, v1.7.8".