PT-2026-3254 · Joomla · Easydiscuss

Adibou · Published 2026-01-16 · Updated 2026-01-16 · CVE-2026-21623

Positive Technologies (AI Summary)

CVSS v4.0

9.4

Critical

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Name of the Vulnerable Software and Affected Versions Easy Discuss component for Joomla (affected versions not specified)

Description A flaw exists in the forum post handling of the Easy Discuss component for Joomla due to insufficient input filtering. This can lead to a persistent cross-site scripting (XSS) condition. The issue allows for the injection of malicious scripts into forum posts, potentially affecting users who view the compromised content.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-21623

Affected Products

Easydiscuss

References · 4

• https://osv.dev/vulnerability/CVE-2026-21623 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21623 · Security Note
• https://twitter.com/CVEnew/status/2012303246443036890 · Twitter Post
• https://stackideas.com/easydiscuss · Note