CVE-2026-87927 MaxSite CMS - Local File Inclusion

MaxSite CMS <= 109.6 contains a local file inclusion vulnerability caused by base64-encoded path traversal sequences in ajax and require-maxsite dispatchers, letting unauthenticated attackers execute privileged handler files bypassing path validation.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.59% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Local File Inclusion
Impact
File System Read, Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Published
9 September 2026
Updated
15 October 2026
Weakness
CWE-98

Vendor fix

Update to the latest version beyond 109.6.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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