CVE-2026-21623 - Vulnerability Details - OpenCVE

Lack of input filterung leads to a persistent XSS vulnerability in the forum post handling of the Easy Discuss component for Joomla.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://stackideas.com/easydiscuss

History

Fri, 16 Jan 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Fri, 16 Jan 2026 15:15:00 +0000

Type	Values Removed	Values Added
Description		Lack of input filterung leads to a persistent XSS vulnerability in the forum post handling of the Easy Discuss component for Joomla.
Title		Extension - stackideas.com - Persistent XSS in EasyDiscuss component 1.0.0-5.0.15 for Joomla
Weaknesses		CWE-79
References		https://stackideas.com/easydiscuss
Metrics		cvssV4_0 `{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-01-16T15:04:36.308Z

Updated: 2026-01-16T15:38:27.743Z

Reserved: 2026-01-01T04:42:27.959Z

Link: CVE-2026-21623

Vulnrichment

Updated: 2026-01-16T15:38:06.476Z

NVD

Status : Awaiting Analysis

Published: 2026-01-16T15:15:54.733

Modified: 2026-01-16T15:55:12.257

Link: CVE-2026-21623

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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