CVE-2025-7628 in kkFileViewOfficeEdit
Summary
by MITRE • 07/14/2025
A vulnerability was found in YiJiuSmile kkFileViewOfficeEdit up to 5fbc57c48e8fe6c1b91e0e7995e2d59615f37abd. It has been classified as critical. This affects the function deleteFile of the file /deleteFile. The manipulation of the argument fileName leads to path traversal. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available.
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Analysis
by VulDB Data Team • 11/07/2025
The vulnerability identified as CVE-2025-7628 represents a critical path traversal flaw within the YiJiuSmile kkFileViewOfficeEdit application, specifically impacting the deleteFile function located at the /deleteFile endpoint. This security weakness stems from inadequate input validation of the fileName parameter, allowing attackers to manipulate file paths through crafted malicious inputs. The vulnerability exists within the application's file handling mechanism where user-supplied file names are directly processed without proper sanitization or validation, creating an exploitable condition that enables unauthorized access to the file system beyond the intended boundaries.
The technical implementation of this vulnerability places it firmly within the scope of CWE-22, which describes path traversal or directory traversal attacks that occur when applications fail to properly validate user input before using it in file system operations. The attack vector is remotely accessible, meaning that malicious actors can exploit this flaw without requiring physical access to the system or local network privileges. The vulnerability's exploitation involves crafting specially formatted fileName arguments that can traverse directory structures to access files outside the application's designated file storage areas. This allows attackers to potentially delete arbitrary files, access sensitive data, or even execute code if the application's file handling capabilities extend beyond simple deletion operations.
From an operational impact perspective, this vulnerability poses significant risks to organizations relying on the kkFileViewOfficeEdit application for document management and file operations. The remote exploitability means that attackers can target systems from anywhere on the internet, potentially leading to data loss, unauthorized access to sensitive documents, and complete compromise of the file system. The rolling release methodology employed by this product complicates remediation efforts as the exact version numbers for affected and patched releases are not clearly documented, making it difficult for administrators to determine whether their installations are vulnerable. This lack of clear version information creates additional operational challenges for security teams attempting to implement effective mitigation strategies.
The public disclosure of this exploit significantly increases the risk profile of affected systems, as malicious actors can immediately leverage this vulnerability without requiring advanced technical skills or reconnaissance. Security practitioners should consider implementing network-level mitigations such as firewall rules that restrict access to the vulnerable endpoint, while also monitoring for exploitation attempts through intrusion detection systems. The remediation approach should prioritize immediate deployment of patches or updates from the vendor, though the rolling release model presents challenges in identifying the specific vulnerable versions. Organizations should also implement application-level controls including input validation, proper file path sanitization, and least privilege access controls to reduce the potential impact of such vulnerabilities. The ATT&CK framework classification for this vulnerability would align with T1059 for command and scripting interpreter and T1566 for credential access through exploitation of vulnerabilities, as the path traversal could potentially lead to further system compromise.