CVE-2021-43742 Cross-site scripting in n/a
An attacker can execute arbitrary scripts in the victim's browser via the file upload feature in CMSimple.
- 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-2021-43742?
CVE-2021-43742 is a medium-severity cross-site scripting vulnerability in n/a, published on 13 Apr 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
CMSimple 5.4 is vulnerable to Cross Site Scripting (XSS) via the file upload feature.
Weakness: CWE-79
Which versions are affected by CVE-2021-43742?
It affects 1 product.
Products include Cmsimple Cmsimple.
How do I fix CVE-2021-43742?
No fix has been published for CVE-2021-43742 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-2021-43742 being exploited?
There is no known exploitation of CVE-2021-43742 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2021-43741 Path traversal in n/a
- CVE-2024-57548 Missing authorization in n/a
- CVE-2021-47734 CMSimple 5.4 Authenticated Local File Inclusion Remote Code Execution
- CVE-2021-47735 CMSimple 5.4 Authenticated Remote Code Execution via Template Editing
- CVE-2024-58280 CMSimple 5.15 Remote Command Execution via Extensions Configuration
Sources
Also known as GHSA-gmjx-v99c-7jj2.