[Japanese]

JVNDB-2026-000141

Multiple vulnerabilities in baserCMS

Overview

baserCMS provided by baserCMS User Community contains multiple vulnerabilities listed below:
  • Cross-site scripting (CWE-79) - CVE-2026-93460, CVE-2026-93463, CVE-2026-93464
  • SQL injection (CWE-89) - CVE-2026-62956
  • Missing authentication for critical function (CWE-306) - CVE-2026-93462
CVE-2026-93460
So Kato of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2026-62956, CVE-2026-93462
Yuji Tounai of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2026-93463
Gai Tanaka of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2026-93464
Kuniyoshi Noguchi (KuniNogu) of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 6.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low
CVSS v4 Severity
Base Metrics: 5.3 (Medium) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): Low
  • User Interaction (UI): None
    • Vulnerable System Impact
  • Confidentiality Impact (VC): Low
  • Integrity Impact (VI): Low
  • Availability Impact (VA): Low
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-62956

CVSS v3 Severity
Base Metrics: 5.4(Medium) [IPA Score]
  • Access Vector : Network
  • Attack Complexity : Low
  • Privileges Required : Low
  • User Interaction : Required
  • Scope : Changed
  • Confidentiality Impact : Low
  • Integrity Impact : Low
  • Availability Impact : None
CVSS v4 Severity
Base Metrics: 5.1 (Medium) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): Low
  • User Interaction (UI): Passive
    • Vulnerable System Impact
  • Confidentiality Impact (VC): None
  • Integrity Impact (VI): None
  • Availability Impact (VA): None
    • Subsequent System Impact
  • Confidentiality Impact (SC): Low
  • Integrity Impact (SI): Low
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-93460 ,CVE-2026-93463 , CVE-2026-93464

CVSS v3 Severity
Base Metrics: 5.3(Medium) [IPA Score]
  • Access Vector : Network
  • Attack Complexity : Low
  • Privileges Required : None
  • User Interaction : None
  • Scope : Unchanged
  • Confidentiality Impact : Low
  • Integrity Impact : None
  • Availability Impact : None
CVSS v4 Severity
Base Metrics: 6.9 (Medium) [IPA Score]
  • Access Vector (AV): Network
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): None
  • User Interaction (UI): None
    • Vulnerable System Impact
  • Confidentiality Impact (VC): Low
  • Integrity Impact (VI): None
  • Availability Impact (VA): None
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
The above CVSS base scores have been assigned for CVE-2026-93462
Affected Products


baserCMS Users Community
  • baserCMS versions prior to 5.4.1 (5.4 series) (CVE-2026-93460, CVE-2026-93462, CVE-2026-93463, CVE-2026-93464)
  • baserCMS versions prior to 5.3.1 (Includes all versions prior to 5.3 series) (CVE-2026-93460, CVE-2026-93462, CVE-2026-93463, CVE-2026-93464)
  • baserCMS versions prior to 5.2.10 (Includes all versions prior to 5.2 series) (CVE-2026-62956)

Impact

  • An arbitrary script may be executed in the user's web browser (CVE-2026-93460, CVE-2026-93463, CVE-2026-93464).
  • Information stored in the product's database may be obtained or tampered with by an attacker who has credentials of the Web API (CVE-2026-62956).
  • A remote attacker may obtain sensitive information (CVE-2026-93462).
Solution

[Update the Softwere]
Update the software to the latest version according to the information provided by the developer.
Vendor Information

baserCMS Users Community
CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
  2. SQL Injection(CWE-89) [IPA Evaluation]
  3. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2026-93460
  2. CVE-2026-93462
  3. CVE-2026-93463
  4. CVE-2026-93464
References

  1. JVN : JVN#14353754
Revision History

  • [2026/09/25]
      Web page was published

Date Public2026/09/25
Date First Published2026/09/25
Date Last Updated2026/09/25