PT-2026-3255 · Joomla · Easydiscuss

Adibou · Published 2026-01-16 · Updated 2026-01-16 · CVE-2026-21624

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 persistent cross-site scripting (XSS) issue exists due to insufficient input filtering in the user avatar text handling of the Easy Discuss component. This allows for the execution of malicious scripts when a user views the avatar text.

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-2026-21624

Affected Products

Easydiscuss

References · 5

• https://osv.dev/vulnerability/CVE-2026-21624 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21624 · Security Note
• https://stackideas.com/easydiscuss · Note
• https://twitter.com/VulmonFeeds/status/2012186879391838634 · Twitter Post
• https://twitter.com/CVEnew/status/2012303245503513034 · Twitter Post