CVE-2026-21625

HIGH
2026-01-16 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 16, 2026 - 15:15 nvd
HIGH 8.8

Tags

Joomla Easydiscuss

Description

User provided uploads to the Easy Discuss component for Joomla aren't properly validated. Uploads are purely checked by file extensions, no mime type checks are happening.

Analysis

Arbitrary file upload in Joomla's Easy Discuss component allows authenticated attackers to bypass file validation by spoofing extensions, since the component relies solely on extension checks without verifying MIME types. An attacker with user privileges can upload malicious files to achieve remote code execution on affected systems. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Review file handling controls and restrict upload directories.

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +44
POC: 0

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CVE-2026-21625 vulnerability details – vuln.today
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