CVE-2026-3395

CVE Enrichment

CVSS: 5.5 MEDIUM
EPSS: 2.47%
EPSS Percentile: 84.09%
CISA KEV: Not listed

Description

A flaw has been found in MaxSite CMS up to 109.1. This impacts the function eval of the file application/maxsite/admin/plugins/editor_markitup/preview-ajax.php of the component MarkItUp Preview AJAX Endpoint. Executing a manipulation can lead to code injection. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 109.2 will fix this issue. This patch is called 08937a3c5d672a242d68f53e9fccf8a748820ef3. You should upgrade the affected component. The code maintainer was informed beforehand about the issues. He reacted very fast and highly professional.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: cna@vuldb.com
Published: 01-Mar-2026 21:16
Last Modified: 17-Jun-2026 17:43
EPSS Date: 2026-10-12
CWE: CWE-74, CWE-94

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:L /
                            VI:L /
                            VA:L /
                            SC:N /
                            SI:N /
                            SA:N /
                            E:P /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

Affected Products / Versions

max-3000 / maxsite_cms
Version / affected range: * · before (exclusive) 109.2
cpe:2.3:a:max-3000:maxsite_cms:*:*:*:*:*:*:*:*

References

Last enrichment sync: 12-Oct-2026 21:33
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (2)

Additionally, Insikt Group had previously created templates to detect CVE-2026-3395 (MaxSite CMS) and CVE-2026-59800 (decolua 9Router), but their exploitation was reported in July, so they are not listed in the August Recorded Future Identifies 73 High-Impact Vulnerabilities in August, 70 Actively Exploited
CVE-2026-3395 Recorded Future Identifies 85 High-Impact Vulnerabilities in July, Many Actively Exploited

CVE (142)

Malware (8)

Threat Actors (9)

Vendors (40)

Products (83)

Tools (7)

Countries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.