What’s Vulnerable › Vulnerabilities

CVE-2019-9712

• 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: 2019-03-12 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in Joomla! before 3.9.4. The JSON handler in com_config lacks input validation, leading to XSS.

Affected products

• Joomla!: from 3.2.0 before 3.9.4 — fixed in 3.9.4

How to fix

Upgrade to a fixed version: Joomla! 3.9.4. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/107374
• https://developer.joomla.org/security-centre/772-20190301-core-xss-in-com-config-json-handler
• http://www.securityfocus.com/bid/107374
• https://developer.joomla.org/security-centre/772-20190301-core-xss-in-com-config-json-handler

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