CVE Catalog

CVE-2026-87939

MediumCVSS 4.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

4th percentile - higher than 4% of all known CVEs

Summary

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Feed Block allows Stored XSS. This issue affects Feed Block versions from 0.0.0 to 2.0.2 and from 3.0.0 to 3.0.2.

Risk Assessment

An attacker can store a malicious script that executes in users' browsers, potentially leading to session theft or unauthorized actions.

Recommendation

Update the Feed Block module to a version later than 2.0.2 or 3.0.2 (for the respective branch). Review feed block content for suspicious data.

Related vulnerabilities

Original NVD description (English source)

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Feed Block allows Stored XSS. This issue affects Feed Block versions: from 0.0.0 to 2.0.2, from 3.0.0 to 3.0.2.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS