CVE-2026-31354

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.1.1"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 84.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "feehi_cms", "vendor": "feehi"}], "analysis": {"en": {"generated_at": "2026-04-07T23:27:28.891149+00:00", "value": {"mitigation_remediation": ["Check for an official update or patch that removes the vulnerability in Feehi CMS.", "If no patch is available, restrict access to the Permissions module to trusted administrators only.", "Implement server\u2011side input sanitization or output encoding for the Group, Category, and Description fields.", "Deploy a Web Application Firewall rule to block or escape script tags submitted to these fields.", "Monitor web logs for unusual payloads and inspect permission changes for suspicious activity."], "summary": {"action": "Assess", "impact": "Stored Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "Version 2.1.1 of Feehi CMS, specifically its Permissions module. No other vendors or products are listed as affected.", "description_and_impact": "Authenticated users can save malicious scripts through the Group, Category and Description fields in the Permissions module of Feehi CMS 2.1.1. These payloads are stored and later rendered when other users view the permissions data, allowing attackers to execute arbitrary client\u2011side code. This stored XSS (CWE\u201179) can lead to session hijacking, defacement or phishing attempts, compromising confidentiality, integrity or availability of the application\u2019s user interface.", "risk_and_exploitability": "The CVSS score of 5.4 indicates moderate severity, and the EPSS score of less than 1% suggests low likelihood of exploitation in the wild. The vulnerability requires authenticated access, so an attacker must know valid credentials. It is not listed in the CISA KEV catalog. The primary attack vector is via normal CMS operations by an authenticated user submitting a crafted payload to the affected fields."}}}}, "created": "2026-04-06T20:21:51.784506+00:00", "updated": "2026-04-08T19:52:49.901273+00:00", "vendors": ["feehi", "feehi$PRODUCT$feehi_cms"]}