CVE-2021-47981 Quick.CMS 6.7 Cross-Site Scripting via CSRF to Sliders Form
Authenticated attackers can inject malicious scripts via CSRF in the sliders form, leading to arbitrary JavaScript execution in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-47981?
CVE-2021-47981 is a medium-severity cross-site scripting vulnerability in Opensolution Quick.CMS, published on 16 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Quick.CMS 6.7 contains a cross-site scripting vulnerability in the sliders form that allows authenticated attackers to inject malicious scripts by submitting XSS payloads through the sDescription parameter. Attackers can craft CSRF forms targeting the admin.php?p=sliders-form endpoint to execute arbitrary JavaScript in victim browsers when the form is submitted.
Weakness: CWE-79
Which versions are affected by CVE-2021-47981?
How do I fix CVE-2021-47981?
No fix has been published for CVE-2021-47981 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-47981 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47981 exists.
Sources
Also known as GHSA-g33h-xxgx-7c28.