What’s Vulnerable › Vulnerabilities

CVE-2024-21725: [20240204] - Core - XSS in mail address outputs

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 32.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-29 · updated 2026-06-17
Weakness: CWE-79

Description

Inadequate escaping of mail addresses lead to XSS vulnerabilities in various components.

Affected products

Joomla!: from 4.0.0 before 4.4.3; from 5.0.0 before 5.0.3 — fixed in 4.4.3, 5.0.3

How to fix

Upgrade to a fixed version: Joomla! 4.4.3, 5.0.3. Check the vendor advisory for mitigations.

References

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