The versions listed below are known to be affected by this issue. If you are using one of those versions, you should update to a newer release that has no known vulnerabilities.
Common Name None VWE-ID VWE-2018-4632 Related Report #5461 Severity MEDIUM Exploit Difficulty EASY Platform Affects all platforms supported by the vulnerable versions. Description Permissions Escalation. Due to a fatal error after re-parenting an area, area permissions may not be successfully inherited from the new parent for certain users. Does not affect Lite versions.
Discovered August 26, 2018 Resolved August 27, 2018 Patches Available 4.0.23 Patch Level 2
4.0.22 Patch Level 4
4.0.21 Patch Level 5
Workaround If a fatal error occurs after re-parenting an area, in the Wiki admin panel, go to Maintenance > Rebuild Counters / Caches > Clear Permissions Cache.
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