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CVE-2026-50873

critical · 9.8

An arbitrary file upload vulnerability in the attachment handling component of flatnotes v5.5.4 allows attackers to execute arbitrary code via uploading a crafted HTML or SVG file.

9.8
CVSS
0.4%
EPSS (exploit prob.)
38th
EPSS percentile
2026-06-15
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-434

References

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