Drupal JSON Field Cross-Site Scripting Vulnerability (CVE-2025-10926) — Medium Severity

We’re diving into a crucial security alert concerning the Drupal content management system. A vulnerability has been found in the JSON Field module, which could potentially expose websites to cross-site scripting (XSS) attacks. Keeping your website secure means staying informed about these threats and taking swift action.

This particular issue, identified as CVE-2025-10926, highlights the importance of properly handling user input. When web applications don’t adequately check or “neutralize” data that users submit, attackers can inject malicious code. In this case, it affects how the JSON Field module processes information, creating an opening for XSS.

Cross-site scripting (XSS) is a common type of attack where malicious scripts are injected into otherwise trusted websites. These scripts are then executed by the victim’s browser. This could allow attackers to steal session cookies, deface websites, redirect users to malicious sites, or perform actions on behalf of the user. For websites using the affected JSON Field module, this means a potential risk to both site administrators and visitors.

CVE Details

The vulnerability is formally known as CVE-2025-10926.

  • Product: Drupal JSON Field module
  • Published: October 30, 2025
  • Severity: Medium
  • Status: Analyzed

Affected Products

The vulnerability impacts the Drupal JSON Field module. Specifically, any versions from 0.0.0 up to, but not including, 1.5 are susceptible. If your Drupal website uses the JSON Field module and is running a version older than 1.5, it is considered vulnerable.

Current Status

This vulnerability is currently in the “Analyzed” status, meaning it has been thoroughly investigated and understood by security researchers. Information about the vulnerability has been made public to ensure that affected users can take necessary precautions.

Severity Level

The severity of CVE-2025-10926 is rated as Medium, with a CVSS score of 6.1. While not critical, a medium severity rating indicates that the vulnerability could still lead to significant impacts if exploited. XSS attacks, even if rated medium, can compromise user data, session information, and the integrity of the website, making timely action essential.

Possible Solutions

To safeguard your Drupal website from this cross-site scripting vulnerability, the most critical step is to update the JSON Field module. Based on the vulnerability description, versions from 0.0.0 before 1.5 are affected. Therefore, updating your JSON Field module to version 1.5 or newer is the recommended fix. It is always best practice to backup your website before performing any updates.

For the most precise and up-to-date instructions, including any specific patch details or alternative mitigation strategies, always refer to the official security advisory provided by Drupal.

References

https://www.drupal.org/sa-contrib-2025-106

Alex Joseph
Alex Joseph

Alex Joseph is a Senior Support Staff professional with deep experience in server management, web hosting technologies, and cybersecurity operations. He works daily with Linux servers, cloud platforms, performance tuning, and security hardening, giving him strong real-world technical knowledge. Along with his support role, he write about security best practices, hosting infrastructure, and software management.