What is CVE-2025-53891?

CVE-2025-53891 is a medium-severity vulnerability in Timelineofficial Time-Line-, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.3/10. Published 2025-07-15.

How severe is CVE-2025-53891?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Arbitrary file upload in Timelineofficial Time-Line-

CVE-2025-53891

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 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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.003 (26.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Timelineofficial Time-line- — versions < 1.0.5

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-53891?: CVE-2025-53891 is a medium-severity vulnerability in Timelineofficial Time-Line-, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.3/10. Published 2025-07-15.
How severe is CVE-2025-53891?: Medium severity. CVSS v3 base score is 4.3 out of 10.