CVE-2025-53891
Published: 15 July 2025
Summary
CVE-2025-53891 is a medium-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability. Its CVSS base score is 4.3 (Medium).
Operationally, ranked in the top 35.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-21405
Vulnerability details
The timelineofficial/Time-Line- repository contains the source code for the TIME LINE website. A vulnerability was found in the TIME LINE website where uploaded files (instruction/message media) are not strictly validated for type and size. A user may upload renamed or…
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oversized files that can disrupt performance or bypass restrictions. This could result in malicious file upload, denial of service, or client-side crashes. Version 1.0.5 contains a fix for the issue.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.