Vulnerability Details CVE-2021-22966
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. Concrete CMS Security team CVSS scoring: 7.1 AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HCredit for discovery: "Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )"This fix is also in Concrete version 9.0.0
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 45.5%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.5
References
Products affected by CVE-2021-22966
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cpe:2.3:a:concretecms:concrete_cms:-
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cpe:2.3:a:concretecms:concrete_cms:5.4.1.1
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cpe:2.3:a:concretecms:concrete_cms:5.4.2
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cpe:2.3:a:concretecms:concrete_cms:5.4.2.1
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cpe:2.3:a:concretecms:concrete_cms:5.4.2.2
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cpe:2.3:a:concretecms:concrete_cms:5.6.1
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cpe:2.3:a:concretecms:concrete_cms:5.6.1.1
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cpe:2.3:a:concretecms:concrete_cms:5.6.1.2
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cpe:2.3:a:concretecms:concrete_cms:5.6.2
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cpe:2.3:a:concretecms:concrete_cms:5.6.2.1
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cpe:2.3:a:concretecms:concrete_cms:5.6.3
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cpe:2.3:a:concretecms:concrete_cms:5.6.3.1
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cpe:2.3:a:concretecms:concrete_cms:5.6.3.3
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cpe:2.3:a:concretecms:concrete_cms:5.6.3.4
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cpe:2.3:a:concretecms:concrete_cms:5.6.3.5
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cpe:2.3:a:concretecms:concrete_cms:5.6.4.0
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cpe:2.3:a:concretecms:concrete_cms:5.7.0
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cpe:2.3:a:concretecms:concrete_cms:5.7.0.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.0.3
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cpe:2.3:a:concretecms:concrete_cms:5.7.0.4
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cpe:2.3:a:concretecms:concrete_cms:5.7.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.2
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cpe:2.3:a:concretecms:concrete_cms:5.7.2.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.3
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cpe:2.3:a:concretecms:concrete_cms:5.7.3.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.4
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cpe:2.3:a:concretecms:concrete_cms:5.7.4.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.4.2
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cpe:2.3:a:concretecms:concrete_cms:5.7.5
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.1
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.10
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.11
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.12
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.13
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.2
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.3
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.4
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.5
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.6
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.7
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.8
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cpe:2.3:a:concretecms:concrete_cms:5.7.5.9
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cpe:2.3:a:concretecms:concrete_cms:5.8.1.0
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cpe:2.3:a:concretecms:concrete_cms:5.8.2.0
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cpe:2.3:a:concretecms:concrete_cms:8.0
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cpe:2.3:a:concretecms:concrete_cms:8.0.1
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cpe:2.3:a:concretecms:concrete_cms:8.0.2
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cpe:2.3:a:concretecms:concrete_cms:8.0.3
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cpe:2.3:a:concretecms:concrete_cms:8.1.0
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cpe:2.3:a:concretecms:concrete_cms:8.2.0
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cpe:2.3:a:concretecms:concrete_cms:8.2.1
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cpe:2.3:a:concretecms:concrete_cms:8.3.0
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cpe:2.3:a:concretecms:concrete_cms:8.3.1
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cpe:2.3:a:concretecms:concrete_cms:8.3.2
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cpe:2.3:a:concretecms:concrete_cms:8.4.0
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cpe:2.3:a:concretecms:concrete_cms:8.4.1
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cpe:2.3:a:concretecms:concrete_cms:8.4.2
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cpe:2.3:a:concretecms:concrete_cms:8.4.3
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cpe:2.3:a:concretecms:concrete_cms:8.4.4
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cpe:2.3:a:concretecms:concrete_cms:8.4.5
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cpe:2.3:a:concretecms:concrete_cms:8.5.0
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cpe:2.3:a:concretecms:concrete_cms:8.5.1
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cpe:2.3:a:concretecms:concrete_cms:8.5.2
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cpe:2.3:a:concretecms:concrete_cms:8.5.3
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cpe:2.3:a:concretecms:concrete_cms:8.5.4
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cpe:2.3:a:concretecms:concrete_cms:8.5.5
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cpe:2.3:a:concretecms:concrete_cms:8.5.6