{"id":82619,"date":"2025-10-12T03:28:43","date_gmt":"2025-10-12T03:28:43","guid":{"rendered":""},"modified":"2025-10-22T10:36:17","modified_gmt":"2025-10-22T16:36:17","slug":"cve-2025-11221-path-traversal-and-unrestricted-file-upload-vulnerability-in-gtone-changeflow","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-11221-path-traversal-and-unrestricted-file-upload-vulnerability-in-gtone-changeflow\/","title":{"rendered":"CVE-2025-11221: Path Traversal and Unrestricted File Upload Vulnerability in GTONE ChangeFlow<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The Common Vulnerabilities and Exposures (CVE) list has recently been updated with a high-severity security issue, CVE-2025-11221. This vulnerability, classified as a Pathname Traversal and Unrestricted File Upload vulnerability, affects GTONE ChangeFlow software. It allows malicious actors to exploit an improperly constrained file upload<\/a> mechanism and access restricted directories. The potential impact of this vulnerability is significant as it could lead to a system<\/a> compromise or data leakage, making it a key concern for organizations using GTONE ChangeFlow.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-11221
\nSeverity: High (CVSS 8.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

GTONE ChangeFlow | All versions through v9.0.1.1<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability stems from ChangeFlow’s insufficient security mechanisms in handling file uploads<\/a> and directory access. An attacker can exploit this by uploading a file<\/a> with a malicious payload and manipulating the file path. This allows them to traverse the file system and access restricted directories<\/a>. Given the lack of proper Access Control Lists (ACLs), the attacker can execute the uploaded file leading to potential system compromise or leakage of sensitive<\/a> data.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how the vulnerability might be exploited. This example shows a HTTP POST request where an attacker uploads a malicious file<\/a> and modifies the file path to access restricted directories.<\/p>\n

POST \/uploadfile HTTP\/1.1\nHost: target.example.com\nContent-Type: multipart\/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW\n----WebKitFormBoundary7MA4YWxkTrZu0gW\nContent-Disposition: form-data; name=\"file\"; filename=\"..\/..\/etc\/passwd\"\nContent-Type: text\/plain\n{ \"malicious_payload\": \"...\" }\n----WebKitFormBoundary7MA4YWxkTrZu0gW--<\/code><\/pre>\n
In the above example, the attacker is attempting to overwrite the “\/etc\/passwd” file, a critical system file<\/a> in Unix-based systems, with their malicious payload.
\nThe mitigation strategy for this vulnerability involves applying the patch provided by the vendor or using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary measure. It’s highly recommended to apply the patch as soon as it’s available to avoid potential system<\/a> compromise or data leakage.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Common Vulnerabilities and Exposures (CVE) list has recently been updated with a high-severity security issue, CVE-2025-11221. This vulnerability, classified as a Pathname Traversal and Unrestricted File Upload vulnerability, affects GTONE ChangeFlow software. It allows malicious actors to exploit an improperly constrained file upload mechanism and access restricted directories. The potential impact of this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[85],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-82619","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-directory-traversal"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t