CVE-2021-40555 Cross-site scripting in n/a
Attackers can execute arbitrary code via XSS in the page description field of flatCore CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-40555?
CVE-2021-40555 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross site scripting (XSS) vulnerability in flatCore-CMS 2.2.15 allows attackers to execute arbitrary code via description field on the new page creation form.
Weakness: CWE-79
Which versions are affected by CVE-2021-40555?
It affects 1 product.
Products include Flatcore Flatcore.
How do I fix CVE-2021-40555?
No fix has been published for CVE-2021-40555 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-2021-40555 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40555 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rp7v-crhj-652h.