[Japanese]

JVNDB-2023-000045

WordPress Plugin "VK Blocks" and "VK All in One Expansion Unit" vulnerable to cross-site scripting

Overview

WordPress Plugin "VK Blocks" and "VK All in One Expansion Unit" provided by Vektor,Inc. contain multiple cross-site scripting vulnerabilities (CWE-79) listed below.
  • Cross-site scripting vulnerability in Tag edit function - CVE-2023-27923
  • Cross-site scripting vulnerability in Post function - CVE-2023-27925
  • Cross-site scripting vulnerability in Profile setting function - CVE-2023-27926
  • Cross-site scripting vulnerability in CTA post function - CVE-2023-28367
apple502j reported these vulnerabilities to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-27925

CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 3.5 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-27923

CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-27926

CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 3.5 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-28367
Affected Products


VECTOR INC.
  • VK All in One Expansion Unit 9.88.1.0 and earlier - CVE-2023-27926,CVE-2023-28367
  • VK Blocks 1.53.0.1 and earlier - CVE-2023-27923,CVE-2023-27925
  • VK Blocks Pro 1.53.0.1 and earlier - CVE-2023-27923,CVE-2023-27925

Impact

  • An arbitrary script may be executed on the web browser of the user who is logging in to the product - CVE-2023-27923, CVE-2023-28367
  • An arbitrary script may be executed on the web browser of the user who is accessing the site using the product - CVE-2023-27925, CVE-2023-27926
Solution

[Update the plugin]
Update the plugin according to the information provided by the developer.
The developer has released the following versions that address these vulnerabilities.
  • VK Blocks 1.54.0.0 or later
  • VK Blocks Pro 1.54.0.0 or later
  • VK All in One Expansion Unit 9.88.2.0 or later
Vendor Information

VECTOR INC.
CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2023-27923
  2. CVE-2023-27925
  3. CVE-2023-27926
  4. CVE-2023-28367
References

  1. JVN : JVN#95792402
  2. National Vulnerability Database (NVD) : CVE-2023-27923
  3. National Vulnerability Database (NVD) : CVE-2023-27925
  4. National Vulnerability Database (NVD) : CVE-2023-27926
  5. National Vulnerability Database (NVD) : CVE-2023-28367
Revision History

  • [2023/05/09]
      Web page was published
  • [2024/05/24]
      References : Contents were added

Date Public2023/05/09
Date First Published2023/05/09
Date Last Updated2024/05/24