CVE-2026-3244

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{"affected": [{"affectedData": [{"collectionURL": "https://github.com/concretecms/concretecms", "defaultStatus": "unaffected", "platforms": ["git"], "product": "Concrete CMS", "repo": "https://github.com/concretecms/concretecms", "vendor": "Concrete CMS", "versions": [{"lessThan": "9.4.8", "status": "affected", "version": "5", "versionType": "git"}]}], "source": "ff5b8ace-8b95-4078-9743-eac1ca5451de"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*", "matchCriteriaId": "BCBFD93E-6A10-4E9F-A31E-4A2C1FCD367C", "versionEndExcluding": "9.4.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Concrete CMS below version 9.4.8, A stored cross-site scripting (XSS) vulnerability exists in the search block where page names and content are rendered without proper HTML encoding in search results. This allows authenticated, rogue administrators to inject malicious JavaScript through page names that executes when users search for and view those pages in search results.\u00a0The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks zolpak\u00a0for reporting"}, {"lang": "es", "value": "En Concrete CMS anterior a la versi\u00f3n 9.4.8, existe una vulnerabilidad de cross-site scripting (XSS) almacenado en el bloque de b\u00fasqueda donde los nombres de p\u00e1gina y el contenido se renderizan sin la codificaci\u00f3n HTML adecuada en los resultados de b\u00fasqueda. Esto permite a administradores autenticados y maliciosos inyectar JavaScript malicioso a trav\u00e9s de nombres de p\u00e1gina que se ejecuta cuando los usuarios buscan y ven esas p\u00e1ginas en los resultados de b\u00fasqueda. El equipo de seguridad de Concrete CMS otorg\u00f3 a esta vulnerabilidad una puntuaci\u00f3n CVSS v.4.0 de 4.8 con el vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Gracias a zolpak por reportar."}], "id": "CVE-2026-3244", "lastModified": "2026-06-17T10:43:16.803", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3244", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-04T15:50:43.215844Z", "version": "2.0.3"}}]}, "published": "2026-03-04T02:15:54.663", "references": [{"source": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "tags": ["Patch", "Release Notes", "Vendor Advisory"], "url": "https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes"}, {"source": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://github.com/concretecms/concretecms/pull/12826"}], "sourceIdentifier": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "ff5b8ace-8b95-4078-9743-eac1ca5451de", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["git"], "status": "affected", "versions": {"scheme": "generic", "value": "[5,9.4.8)"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "Concrete CMS", "source": "cna", "vendor": "Concrete CMS"}, "product": "concrete_cms", "vendor": "concretecms"}], "analysis": {"en": {"generated_at": "2026-04-18T10:02:26.618049+00:00", "value": {"mitigation_remediation": ["Upgrade Concrete CMS to version 9.4.8 or later, which removes the vulnerability.", "If an upgrade cannot be performed immediately, disable the standard search block or replace it with a patch that properly encodes output.", "Restrict the pool of administrators to trusted users and monitor for anomalous page\u2011name content that may indicate injection attempts."], "summary": {"action": "Immediate Patch", "impact": "Stored Cross\u2011Site Scripting via Search Results"}, "threat_synthesis": {"affected_systems": "The vulnerability affects installations of Concrete CMS running any version older than 9.4.8; newer releases are not impacted.", "description_and_impact": "Concrete CMS versions below 9.4.8 render search results without proper HTML encoding, enabling authenticated rogue administrators to insert malicious JavaScript into page names. The embedded script executes in the browsers of users who view those search results, providing a stored XSS vector. The weakness is classified as CWE\u201179.", "risk_and_exploitability": "The CVSS score of 4.8 indicates moderate severity, while the EPSS score of less than 1% suggests a low probability of exploitation at present. The flaw is not listed in the CISA KEV catalog. Exploitation requires a high\u2011privilege administrator account, but the CVSS vector indicates the attacker can act remotely, so the attack vector is network rather than strictly internal. Overall the risk remains moderate, but the low exploitation likelihood should not induce complacency, especially for organizations with valuable content."}}}}, "created": "2026-03-04T14:53:21.412617+00:00", "updated": "2026-04-18T10:15:25.863908+00:00", "vendors": ["concretecms", "concretecms$PRODUCT$concrete_cms"]}