CVE-2026-30877

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://basercms.net/security/JVN_20837860	Vendor Advisory
https://github.com/baserproject/basercms/releases/tag/5.2.3	Release Notes
https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-31 01:16

Updated : 2026-06-17 10:33

NVD link : CVE-2026-30877

Mitre link : CVE-2026-30877

CVE.ORG link : CVE-2026-30877

JSON object : View

Products Affected

basercms

basercms

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"id": "CVE-2026-30877", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30877", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-02T14:43:30.917593Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "baserproject", "product": "basercms", "versions": [{"status": "affected", "version": "< 5.2.3"}]}]}], "published": "2026-03-31T01:16:35.830", "references": [{"url": "https://basercms.net/security/JVN_20837860", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/baserproject/basercms/releases/tag/5.2.3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/baserproject/basercms/security/advisories/GHSA-m9g7-rgfc-jcm7", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-78"}]}], "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."}], "lastModified": "2026-06-17T10:33:04.630", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:basercms:basercms:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07DEEEF3-0621-431D-8A38-405EDBD0957E", "versionEndExcluding": "5.2.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}