What’s Vulnerable › Vulnerabilities

CVE-2023-23754: [20230501] - Core - Open Redirect and XSS within the mfa select

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-30 · updated 2026-06-17
• Weakness: CWE-20

Description

An issue was discovered in Joomla! 4.2.0 through 4.3.1. Lack of input validation caused an open redirect and XSS issue within the new mfa selection screen.

Affected products

• Joomla!: from 4.2.0 before 4.3.2 — fixed in 4.3.2

How to fix

Upgrade to a fixed version: Joomla! 4.3.2. Check the vendor advisory for mitigations.

References

• https://developer.joomla.org/security-centre/899-20230501-core-open-redirects-and-xss-within-the-mfa-selection.html
• https://developer.joomla.org/security-centre/899-20230501-core-open-redirects-and-xss-within-the-mfa-selection.html

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