CVE-2026-109177 in MoguBlog
Summary
by MITRE • 10/12/2026
MoguBlog through 6.2 contains a broken access control vulnerability that allows authenticated administrators to move or rename other administrators' network-disk files by supplying their file paths. Attackers can send crafted requests to POST /networkDisk/moveFile, batchMoveFile, or edit, which update rows without admin_uid checks, relocating or renaming other users' files and folders.
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Analysis
by VulDB Data Team • 10/12/2026
The vulnerability identified in MoguBlog versions through 6.2 represents a critical failure in server-side access control mechanisms, specifically classified under CWE-284 Improper Access Control. This flaw allows authenticated administrators to manipulate file system resources belonging to other administrative users without proper authorization verification. The core technical deficiency lies within the backend logic handling network disk operations, where the application fails to validate that the user initiating a request possesses ownership or sufficient privileges over the target files and directories. By supplying arbitrary file paths in HTTP POST requests directed at endpoints such as /networkDisk/moveFile, batchMoveFile, or edit, an attacker can bypass intended security boundaries. The server processes these commands by directly updating database rows associated with the specified file paths without checking if the admin_uid of the requester matches the owner of the target resource. This lack of object-level permission checks enables unauthorized modification of critical system assets.
From a technical perspective, this vulnerability exploits the assumption that administrative roles inherently grant unrestricted access to all resources within the application scope. However, in multi-tenant or collaborative environments where multiple administrators manage distinct content sets, role-based access control must be complemented by object-level authorization checks. The absence of these checks means that any authenticated administrator can traverse the file system hierarchy and alter metadata for files they do not own. This behavior aligns with ATT&CK technique T1083 File and Directory Discovery, as attackers may use this capability to map out sensitive data structures, and potentially T1564 Hidden Files and Directories if used in conjunction with other techniques to obscure malicious activities or steal intellectual property by relocating files to inaccessible locations.
The operational impact of this vulnerability is significant for organizations relying on MoguBlog for content management where multiple administrators have access. An attacker leveraging this flaw can cause data loss, corruption, or unauthorized disclosure by moving critical files to directories with different permission settings or renaming them to disrupt application functionality. In severe cases, if the underlying file system permissions are misconfigured, an administrator might be able to overwrite sensitive configuration files or user-uploaded media belonging to colleagues, leading to service disruption and breach of data integrity. This undermines trust among administrative users and compromises the confidentiality and availability aspects of the CIA triad for stored assets.
Mitigation strategies should focus on implementing strict object-level authorization checks within the affected endpoints. Developers must ensure that every request involving file manipulation verifies that the requesting user's identifier matches the owner ID recorded in the database or associated metadata before executing any move, rename, or batch operation. Additionally, input validation should be enforced to prevent path traversal attacks and ensure that only intended directories are accessible. Upgrading to a patched version of MoguBlog is the primary remediation step if available. For systems where an immediate patch is not feasible, implementing web application firewall rules to monitor for suspicious patterns in network disk API calls can provide temporary protection against exploitation while internal code reviews address the root cause.