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        "assignerOrgId": "ff5b8ace-8b95-4078-9743-eac1ca5451de",
        "state": "PUBLISHED",
        "assignerShortName": "ConcreteCMS",
        "dateReserved": "2026-05-05T20:22:40.962Z",
        "datePublished": "2026-05-21T21:20:13.037Z",
        "dateUpdated": "2026-05-22T13:11:14.341Z"
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                "dateUpdated": "2026-05-21T21:20:13.037Z"
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            "title": "For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status",
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                            "lang": "en",
                            "cweId": "CWE-1287",
                            "description": "CWE-1287 Improper validation of specified type of input",
                            "type": "CWE"
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            ],
            "impacts": [
                {
                    "capecId": "CAPEC-115",
                    "descriptions": [
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                            "lang": "en",
                            "value": "CAPEC-115 Authentication Bypass"
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            "affected": [
                {
                    "vendor": "Concrete CMS",
                    "product": "Concrete CMS",
                    "collectionURL": "https://github.com/concretecms/concretecms",
                    "repo": "https://github.com/concretecms/concretecms",
                    "versions": [
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                            "status": "affected",
                            "version": "5.0",
                            "lessThanOrEqual": "9.5.0",
                            "versionType": "git"
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            ],
            "descriptions": [
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                    "lang": "en",
                    "value": "For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. A user with uIsActive=0 (suspended, banned, terminated employee) can still authenticate via OAuth and receive valid API tokens. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N. Thanks 0x4c616e for reporting.",
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                            "value": "<div><span>For Concrete CMS 9.5.0 and below, OAuth 2.0 Authorization-Code Handler Bypasses Account Status. A</span><span>&nbsp;user with </span><code>uIsActive=0</code><span> (suspended, banned, terminated employee) can still authenticate via OAuth and receive valid API tokens.&nbsp;</span><span>The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector&nbsp;</span><span>CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N. Thanks&nbsp;</span><span>0x4c616e for reporting.</span></div>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes",
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                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "subConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
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                "advisory": "https://hackerone.com/reports/3636728",
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