HighGHSA-j4mv-2rv7-v2j9CVE-2021-22966

Improper Privilege Management in Concrete CMS

Published 23 Nov 2021 · Updated 8 Nov 2023

Affected package

Affected: <8.5.7
Fixed in: 8.5.7

Update to the fixed version for your release line, for example:composer require concrete5/core:^8.5.7

Details

Privilege escalation from Editor to Admin using Groups in Concrete CMS versions 8.5.6 and below. If a group is granted "view" permissions on the bulkupdate page, then users in that group can escalate to being an administrator with a specially crafted curl. Fixed by adding a check for group permissions before allowing a group to be moved.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.