CVE-2026-3395

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

3.88% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.4% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD 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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-01 14:02Z6 MO AGO

Last updated

2026-03-02 17:51Z6 MO AGO

Reserved

2026-02-28

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA 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

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
• CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.2

Document digest

53fc36793a50422c4b0443873dab52f6f279a1a87996f00a2819d72456882c13

• vuldb.comVDB-348281 | MaxSite CMS MarkItUp Preview AJAX Endpoint preview-ajax.php eval code injectionhttps://vuldb.com/?id.348281vdb-entrytechnical-description
• vuldb.comVDB-348281 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.348281signaturepermissions-required
• vuldb.comSubmit #762169 | maxsite CMS CMS 109.1 Code Injectionhttps://vuldb.com/?submit.762169third-party-advisory
• github.comhttps://github.com/maxsite/cms/commit/08937a3c5d672a242d68f53e9fccf8a748820ef3patch
• github.comhttps://github.com/maxsite/cms/product