A security flaw has been discovered in iomad up to 4.5.15/5.0.11/5.1.8/5.2.4. Affected by this vulnerability is the function local_iomad_pluginfile in the library public/local/iomad/lib.php of the component PDF Certificate Handler. The manipulation results in authorization bypass. The attack can be launched remotely. The patch is identified as ac7427130865ce0ed80870813317c87ae3060fa4/7bf0b10199782e04aa579e9d516e473b164afd1c/db903abdcb3aba124cce670608ae6d7ba5f51a84/66f7417c5357b7575e39e8be390602156c1a1225. It is advisable to implement a patch to correct this issue. This CVE was requested by the vendor.