CVE-2026-37700 Cross-site scripting in n/a
A remote attacker can exploit a Cross-Site Scripting vulnerability in the MaxSite CMS backend file upload endpoint to obtain sensitive information.
- 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-2026-37700?
CVE-2026-37700 is a medium-severity cross-site scripting vulnerability in n/a, published on 3 Jun 2026. 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 vulnerability in MaxSite CMS v.109.2 allows a remote attacker to obtain sensitive information via the Backend page file upload endpoint used by admin_page
Weakness: CWE-79
Which versions are affected by CVE-2026-37700?
How do I fix CVE-2026-37700?
No fix has been published for CVE-2026-37700 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-2026-37700 being exploited?
There is no known exploitation of CVE-2026-37700 in the wild and no public exploit code.
Sources
Also known as GHSA-56f6-763p-wprp.