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Status published
Unknown
CVE-2025-3902
Block Class - Moderately critical - Cross Site Scripting - SA-CONTRIB-2025-043
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Ivo Van Geertruyen (mr.baileys)
- renatog
- Greg Knaddison (greggles)
- Juraj Nemec (poker10)
References
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Affected Vendor
Drupal
View all reports →Affected Software
Block Class
Vulnerable Versions:
4.0.0
Timeline
Official Publish:
April 23rd, 2025
Last Modified:
April 23rd, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available