What’s Vulnerable › Vulnerabilities

CVE-2023-23755: [20230502] - Core - Bruteforce prevention within the mfa screen

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% 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-307

Description

An issue was discovered in Joomla! 4.2.0 through 4.3.1. The lack of rate limiting allowed brute force attacks against MFA methods.

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/900-20230502-core-bruteforce-prevention-within-the-mfa-screen.html
• https://developer.joomla.org/security-centre/900-20230502-core-bruteforce-prevention-within-the-mfa-screen.html

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