CVE-2025-3902

Block Class - Moderately critical - Cross Site Scripting - SA-CONTRIB-2025-043

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Block Class allows Cross-Site Scripting (XSS).This issue affects Block Class: from 4.0.0 before 4.0.1.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory drupal.org
Affected: Drupal Block Class
Published at:
Updated at:

References

Link Tags
https://www.drupal.org/sa-contrib-2025-043 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-3902?
CVE-2025-3902 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3902?
To fix CVE-2025-3902, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3902 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3902 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3902?
CVE-2025-3902 affects Drupal Block Class.
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