CyberRota Analysis
AI-GeneratedAuthenticated users of MISP versions up to 2.5.45 can exploit a misconfigured ACL in the TemplatesController, allowing them to upload arbitrary files to the server's temporary directory without proper permissions. This vulnerability can lead to excessive disk space consumption, but does not enable more severe attacks such as arbitrary file overwrite or remote code execution. Organizations using affected versions should prioritize patching to mitigate potential resource exhaustion risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile() because the ACL entry for templates/uploadFile used the wildcard *. This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts arbitrary content with only minimal checks and writes it into app/tmp/files/. A low-privileged or read-only user can therefore repeatedly upload files and consume server disk space without requiring perm_add or perm_template. The fix changes the ACL requirement from * to perm_add. The commit also rules out stronger impacts: uploaded files receive random names, path traversal/predictable overwrite is not available, the temporary directory is outside the web root, and the files are not directly served over HTTP. Therefore, the issue should not be described as arbitrary file overwrite, stored XSS, or RCE. Version affected: ≤2.5.45
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