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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2026-0348
Multiple Vulnerabilities in Drupal

Original Issue Date:June 30, 2026

Severity Rating: CRITICAL

Software Affected

  • Formatter Field module versions prior to 2.0.0
  • Flag attendance field module versions prior to 1.2
  • Plotly.js Graphing module versions prior to 3.0.2

Overview

Multiple vulnerabilities have been reported in Drupal modules, which could allow attackers to perform PHP object injection on the targeted system.

Target Audience:
All end-user organizations and individuals using Drupal modules.

Risk Assessment:
Risk of PHP object injection, unauthorized access and system compromise.

Impact Assessment:
Potential for unauthorized access, execution of arbitrary code, sensitive information disclosure and potential compromise of system.

Description

Drupal is an open-source Content Management System (CMS) which allows individuals and organizations to create, manage and maintain websites and web applications.

Multiple vulnerabilities exist in Drupal modules due to insecure deserialization of PHP-serialized data. The affected modules Formatter Field, Flag attendance field, and Plotly.js Graphing store certain field data as PHP-serialized strings, which may allow malicious serialized data to be processed during deserialization, resulting in PHP object injection.

Successful exploitation of these vulnerabilities could allow an attacker to perform PHP object injection on the targeted system.

Solution

Apply appropriate updates as mentioned by the vendor:
https://www.drupal.org/sa-contrib-2026-048

https://www.drupal.org/sa-contrib-2026-049

https://www.drupal.org/sa-contrib-2026-050

Vendor Information

Drupal
https://www.drupal.org/sa-contrib-2026-048
https://www.drupal.org/sa-contrib-2026-049
https://www.drupal.org/sa-contrib-2026-050

References

Drupal
https://www.drupal.org/sa-contrib-2026-048
https://www.drupal.org/sa-contrib-2026-049
https://www.drupal.org/sa-contrib-2026-050

CVE Name
CVE-2026-12535
CVE-2026-55809
CVE-2026-55810

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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