CVE-2026-87939 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Drupal	Feed Block

No data.

No data.

References

Link	Providers
https://www.drupal.org/sa-contrib-2026-137

History

Thu, 22 Oct 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 22 Oct 2026 09:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Drupal Drupal feed Block
Vendors & Products		Drupal Drupal feed Block

Thu, 22 Oct 2026 01:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Feed Block - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-137
Weaknesses		CWE-79
References		https://www.drupal.org/sa-contrib-2026-137

MITRE

Status: PUBLISHED

Assigner: drupal

Published: 2026-10-22T01:22:02.857Z

Updated: 2026-10-22T17:27:21.567Z

Reserved: 2026-09-09T16:56:20.052Z

Link: CVE-2026-87939

Vulnrichment

Updated: 2026-10-22T17:27:10.902Z

NVD

Status : Awaiting Analysis

Published: 2026-10-22T02:17:03.387

Modified: 2026-10-22T18:17:31.560

Link: CVE-2026-87939

Redhat

No data.

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