CVE-2026-50873 File upload in n/a
Attackers can execute arbitrary code by uploading crafted HTML or SVG files in the attachment handling component of flatnotes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-50873?
CVE-2026-50873 is a critical vulnerability in n/a, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2026-50873?
How do I fix CVE-2026-50873?
No fix has been published for CVE-2026-50873 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-50873 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50873 exists.
Sources
Also known as GHSA-wv29-ggqw-p97w.