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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*", "matchCriteriaId": "07DEEEF3-0621-431D-8A38-405EDBD0957E", "versionEndExcluding": "5.2.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "baserCMS is a website development framework. Prior to version 5.2.3, there is an OS command injection vulnerability in the update functionality. Due to this issue, an authenticated user with administrator privileges in baserCMS can execute arbitrary OS commands on the server with the privileges of the user account running baserCMS. This issue has been patched in version 5.2.3."}, {"lang": "es", "value": "baserCMS es un framework de desarrollo de sitios web. Antes de la versi\u00f3n 5.2.3, existe una vulnerabilidad de inyecci\u00f3n de comandos del sistema operativo en la funcionalidad de actualizaci\u00f3n. Debido a este problema, un usuario autenticado con privilegios de administrador en baserCMS puede ejecutar comandos arbitrarios del sistema operativo en el servidor con los privilegios de la cuenta de usuario que ejecuta baserCMS. Este problema ha sido parcheado en la versi\u00f3n 5.2.3."}], "id": "CVE-2026-30877", "lastModified": "2026-04-01T20:28:43.797", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-03-31T01:16:35.830", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://basercms.net/security/JVN_20837860"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/baserproject/basercms/releases/tag/5.2.3"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.2.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "basercms", "vendor": "baserproject"}], "analysis": {"en": {"generated_at": "2026-04-02T03:20:01.826810+00:00", "value": {"mitigation_remediation": ["Upgrade baserCMS to version 5.2.3 or later to eliminate the command\u2011execution flaw."], "summary": {"action": "Immediate Patch", "impact": "Remote Command Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability exists in baserCMS software from all releases prior to 5.2.3, delivered by baserproject. Users deploying these older versions are affected.", "description_and_impact": "An OS command injection flaw in baserCMS\u2019s update functionality permits an authenticated administrator to run arbitrary operating\u2011system commands on the web server. This flaw effectively grants the attacker the same privileges as the web application user, allowing full compromise of confidentiality, integrity, and availability of the underlying system.", "risk_and_exploitability": "The flaw has a CVSS score of 9.1 and an EPSS score of less than 1%, indicating a high severity but a relatively low probability of public exploitation. It is not listed in the CISA KEV catalog. Exploitation requires valid administrator credentials and access to the update interface; the likely attack vector involves a malicious payload supplied through the update form. Once triggered, the attacker can execute any command with the web server\u2019s process rights."}}}}, "created": "2026-03-31T19:56:41.593029+00:00", "updated": "2026-04-03T09:10:44.170430+00:00", "vendors": ["baserproject", "baserproject$PRODUCT$basercms"]}