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NVD Vulnerability Details :

CVE-2026-21632

Analyzed

More Info Official Page

Source-security@joomla.org

Published At-01 Apr, 2026 | 10:16

Updated At-09 Apr, 2026 | 19:59

Lack of output escaping for article titles leads to XSS vectors in various locations.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary	3.1	5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Type: Secondary

Version: 4.0

Base score: 5.9

Base severity: MEDIUM

Vector:

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Type: Primary

Version: 3.1

Base score: 5.4

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CPE Matches

Joomla!

>>joomla\!>>Versions from 3.0.0(inclusive) to 5.4.4(exclusive)

cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*

Joomla!

>>joomla\!>>Versions from 6.0.0(inclusive) to 6.0.4(exclusive)

cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-79	Primary	security@joomla.org

CWE ID: CWE-79

Type: Primary

Source: security@joomla.org

References

Hyperlink	Source	Resource
https://developer.joomla.org/security-centre/1030-20260304-core-xss-vectors-in-various-article-title-outputs.html	security@joomla.org	Vendor Advisory

Hyperlink: https://developer.joomla.org/security-centre/1030-20260304-core-xss-vectors-in-various-article-title-outputs.html

Source: security@joomla.org

Resource:

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History