CVE-2026-90914 | BDVDB-2026-380577 Detail

Joomla! ProjectJoomla! CMS

Description#

Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to an XSS vulnerability in the generic audio and video output layouts.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References#

Exploit#

No public exploit known

History#

Version 12026-09-29Record published in the CVE List.
Version 22026-09-30Most recent update recorded in the CVE List.

Published

Published: 2026-09-29
Last modified: 2026-09-30

Vendor information

Vendor: Joomla! Project
Product: Joomla! CMS

All Joomla! Project vulnerabilities

Score

5.9 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 12.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
4.0.0-5.4.8
Fixed
Not stated
Vulnerable
6.0.0-6.1.3
Fixed
Not stated

Scoring System

CVSS v4.0

5.9 Medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	None
Privileges Required	High
User Interaction	Passive
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	Low
Subsequent System Confidentiality	None
Subsequent System Integrity	None
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).