PT-2025-17658 · Drupal · Drupal Block Class

Greg Knaddison + 2 · CVE-2025-3902 · Published 2025-04-23 · Updated 2025-04-23

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Drupal Block Class versions 4.0.0 through 4.0.0

Description The issue is related to an Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting (XSS), in the Drupal Block Class. This allows for Cross-Site Scripting (XSS) attacks.

Recommendations For Drupal Block Class version 4.0.0, update to version 4.0.1 or later to resolve the issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-3902

DRUPAL-CONTRIB-2025-043

Affected Products

Drupal Block Class

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3902.json · Exploit
• https://drupal.org/sa-contrib-2025-043 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-3902 · Security Note
• https://osv.dev/vulnerability/CVE-2025-3902 · Vendor Advisory
• https://drupal.org/project/block_class · Note
• https://git.drupalcode.org/project/block_class · Note
• https://t.me/cvedetector/23603 · Telegram Post
• https://t.me/cvetracker/22227 · Telegram Post
• https://twitter.com/CVEnew/status/1915096815696793740 · Twitter Post