CVE-2021-47972 Sticky Notes & Color Widgets 1.4.2 Denial of Service
Attackers can crash the Sticky Notes & Color Widgets application by inputting excessively long character strings into note fields.
- 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-2021-47972?
CVE-2021-47972 is a high-severity denial of service vulnerability in sticky-notes-color-widgets Sticky Notes Color Widgets, published on 16 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Sticky Notes & Color Widgets 1.4.2 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can paste large payloads of repeated characters into note fields to trigger application crashes and make the application stop responding.
Weakness: CWE-789
Which versions are affected by CVE-2021-47972?
How do I fix CVE-2021-47972?
No fix has been published for CVE-2021-47972 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-47972 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47972 exists.
Sources
Also known as GHSA-6vpc-p46x-xmf7.