CVE-2021-22966
Improper Privilege Management in Concrete CMS
8.8
HIGH
CVSS 3.1
EPSS 0.95%
Description
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.
How to fix CVE-2021-22966
To remediate CVE-2021-22966, upgrade the affected package to a fixed version below.
- —upgrade to 8.5.7 or later
Is CVE-2021-22966 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 8.5.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |