CVE-2026-87939

Published Oct 22, 2026

Last updated 2 days ago

CVSS medium 4.2

Overview

Description
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.
Source
mlhess@drupal.org
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
4.2
Impact score
2.5
Exploitability score
1.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Severity
MEDIUM

Weaknesses

mlhess@drupal.org
CWE-79

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.