NVD · CVE-2026-50873

CVE-2026-50873

Published: Mon, 15 Jun 2026 20:16

CVE-2026-50873

Summary

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.

Are YOU affected by CVE-2026-50873?

5-second check on your actual server. Reads /etc/os-release, uname -r, and dpkg-query; matches against the live USN + Debian Security Tracker feeds; tells you whether CVE-2026-50873 (and any other live CVE) applies. Anonymous, no signup.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan Read the bash source first

References

https://gist.github.com/pyuysig/ab0af5b10877fb906941e05a69b202a7
https://gist.github.com/pyuysig/ab0af5b10877fb906941e05a69b202a7

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