Vulnerability Description
In MISP, the OrganisationsController::__uploadLogo method processed a caller-supplied tmp_name value with filesystem probes (file_exists, MIME type detection, EXIF reading) before verifying that the value corresponded to a genuine PHP file upload via is_uploaded_file. An authenticated site-admin user could supply an arbitrary server file path as the tmp_name parameter. The application would then probe that path and return distinct validation error messages depending on whether the file existed and what its image type was, effectively creating a file-existence and image-type oracle against the server filesystem. The vulnerability requires site-admin privileges and does not allow arbitrary file read, code execution, or modification; the impact is limited to disclosure of whether a given path exists on the server and, for image files, their type.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-95703?
CVE-2026-95703 is a documented vulnerability. In MISP, the OrganisationsController::__uploadLogo method processed a caller-supplied tmp_name value with filesystem probes (file_exists, MIME type detection, EXIF reading) before verifying that the v...
How severe is CVE-2026-95703?
CVSS scoring is not yet available for CVE-2026-95703. Check NVD for updates.
Is there a patch for CVE-2026-95703?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.