What’s Vulnerable › Vulnerabilities

CVE-2019-11809

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-05-20 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in Joomla! before 3.9.6. The debug views of com_users do not properly escape user supplied data, which leads to a potential XSS attack vector.

Affected products

• Joomla!: from 1.7.0 before 3.9.6 — fixed in 3.9.6

How to fix

Upgrade to a fixed version: Joomla! 3.9.6. Check the vendor advisory for mitigations.

References

• https://developer.joomla.org/security-centre/780-20190501-core-xss-in-com-users-acl-debug-view
• https://developer.joomla.org/security-centre/780-20190501-core-xss-in-com-users-acl-debug-view

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