CVE-2026-34558

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{"affected": [{"affectedData": [{"product": "ci4ms", "vendor": "ci4-cms-erp", "versions": [{"status": "affected", "version": "< 0.31.0.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ci4-cms-erp:ci4ms:*:*:*:*:*:*:*:*", "matchCriteriaId": "805F6B8A-9324-4CA4-BADE-439CC15DA14C", "versionEndExcluding": "0.31.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, the application fails to properly sanitize user-controlled input within the Methods Management functionality when creating or managing application methods/pages. Multiple input fields accept attacker-controlled JavaScript payloads that are stored server-side without sanitization or output encoding. These stored values are later rendered directly into administrative interfaces and global navigation components without proper encoding, resulting in Stored DOM-Based Cross-Site Scripting (XSS). This issue has been patched in version 0.31.0.0."}, {"lang": "es", "value": "CI4MS es un esqueleto de CMS basado en CodeIgniter 4 que ofrece una arquitectura modular lista para producci\u00f3n con autorizaci\u00f3n RBAC y soporte de temas. Antes de la versi\u00f3n 0.31.0.0, la aplicaci\u00f3n no logra sanear correctamente la entrada controlada por el usuario dentro de la funcionalidad de Gesti\u00f3n de M\u00e9todos al crear o gestionar m\u00e9todos/p\u00e1ginas de la aplicaci\u00f3n. M\u00faltiples campos de entrada aceptan cargas \u00fatiles de JavaScript controladas por el atacante que se almacenan en el servidor sin saneamiento ni codificaci\u00f3n de salida. Estos valores almacenados se renderizan posteriormente directamente en interfaces administrativas y componentes de navegaci\u00f3n global sin la codificaci\u00f3n adecuada, lo que resulta en Cross-Site Scripting (XSS) persistente basado en DOM. Este problema ha sido parcheado en la versi\u00f3n 0.31.0.0."}], "id": "CVE-2026-34558", "lastModified": "2026-06-17T10:39:14.050", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 5.3, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34558", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-31T15:25:04.512810Z", "version": "2.0.3"}}]}, "published": "2026-03-30T21:17:10.493", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-v77r-xg3p-75g7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.31.0.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ci4ms", "source": "cna", "vendor": "ci4-cms-erp"}, "product": "ci4ms", "vendor": "ci4-cms-erp"}], "analysis": {"en": {"generated_at": "2026-04-06T19:48:45.181084+00:00", "value": {"mitigation_remediation": ["Upgrade CI4MS to version 0.31.0.0 or later."], "summary": {"action": "Patch Now", "impact": "Account Takeover"}, "threat_synthesis": {"affected_systems": "Versions of CI4MS before 0.31.0.0, including 0.30.x and earlier, are affected. The product is the CodeIgniter 4-based CMS skeleton provided by ci4-cms-erp under the product name ci4ms.", "description_and_impact": "This vulnerability occurs when user-controlled input in the Methods Management feature of CI4MS is stored without proper sanitation. The attacker can inject JavaScript that is later rendered in administrative and navigation pages, resulting in stored DOM-based XSS. Exploitation allows an attacker to run code in the browser of any administrator, enabling cookie theft, credential compromise, and full account takeover for all roles, as well as arbitrary privilege escalation.", "risk_and_exploitability": "The CVSS score of 9.1 indicates critical severity, but the EPSS score of less than 1% suggests low likelihood of exploitation in the wild. The vulnerability is not listed in CISA\u2019s KEV catalog. The likely attack vector is an attacker exploiting the administrative interface to inject malicious scripts, which then execute in the browsers of other administrators interpreting the stored data."}}}}, "created": "2026-03-31T19:59:56.316328+00:00", "updated": "2026-04-07T08:08:30.665047+00:00", "vendors": ["ci4-cms-erp", "ci4-cms-erp$PRODUCT$ci4ms"]}