CVE-2026-40331Network attack vector

Unauthenticated database read via altTable subquery

Published May 5, 2026 · Updated May 5, 2026

SQL injection in affected Masa CMS 7.2 through 7.5 releases allows remote attackers to read database data via the unauthenticated JSON API. The setAltTable() method stores an unvalidated altTable value, and feedGateway.cfc inserts it directly into a SQL FROM clause as an arbitrary subquery. The JSON API must be enabled; one crafted request can disclose administrative credentials or password-reset tokens, enabling CMS takeover.

CVSS severity9.8
Critical
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SQL injection in affected Masa CMS 7.2 through 7.5 releases allows remote attackers to read database data via the unauthenticated JSON API. The setAltTable() method stores an unvalidated altTable value, and feedGateway.cfc inserts it directly into a SQL FROM clause as an arbitrary subquery. The JSON API must be enabled; one crafted request can disclose administrative credentials or password-reset tokens, enabling CMS takeover.

The record

CVE
CVE-2026-40331
Published
May 5, 2026
Updated
May 5, 2026
Vendor
Masa CMS
Product
Masa CMS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2026CVE publishedPublication date reported by the CVE source.
  2. May 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 7.2.9
  2. Affected versionversion=>= 7.3.0, <= 7.3.14
  3. Affected versionversion=>= 7.4.0, <= 7.4.9
  4. Affected versionversion=>= 7.5.0, <= 7.5.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Masa CMS · Masa CMSversion=<= 7.2.9; version=>= 7.3.0, <= 7.3.14; version=>= 7.4.0, <= 7.4.9; version=>= 7.5.0, <= 7.5.2

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo