CVE-2026-87927 MaxSite CMS through 109.6 Local File Inclusion via ajax dispatcher
Unauthenticated attackers can execute privileged handler files via path traversal in MaxSite CMS dispatchers, leading to code execution and privilege escalation.
- 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-2026-87927?
CVE-2026-87927 is a high-severity path traversal vulnerability in MaxSite CMS, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispatchers that allows unauthenticated attackers to execute privileged handler files by supplying base64-encoded path traversal sequences. Attackers can bypass path validation checks and execute admin-gated handler actions without authentication to access sensitive functionality.
Weakness: CWE-98
Which versions are affected by CVE-2026-87927?
How do I fix CVE-2026-87927?
No fix has been published for CVE-2026-87927 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-87927 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-87927 exists.
Sources
Also known as GHSA-wxg4-xmxc-6qm6.