CVE-2026-48954 | Improper validation leads to a generic XSS vector in the lan… | CVSS 5.9 MEDIUM

Description

Improper validation leads to a generic XSS vector in the language override feature.

CVE ID: CVE-2026-48954
State: PUBLISHED
Assigner: Joomla
Reserved: 2026-05-26 16:47 UTC
Published: 2026-07-07 17:29 UTC
Last updated: 2026-07-07 18:43 UTC
Primary CWE: CWE-79
CWE-79 Improper Neutralization of Input During Web Page Gene…
Vendor / Product: Joomla! Project / Joomla! CMS
Sources: cve.org · NVD

5.9 MEDIUM CVSS 4.0

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

SSVC — CISA Coordinator

Affected products (1)

Vendor	Product	Platform	Versions
Joomla! Project	Joomla! CMS	—	3.0.0-5.4.6, 6.0.0-6.1.1

Weakness (CWE)

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

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.9	MEDIUM	4.0	cna	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

References (1)