What’s Vulnerable › Vulnerabilities

CVE-2018-12712

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-06-26 · updated 2026-06-17
• Weakness: CWE-20

Description

An issue was discovered in Joomla! 2.5.0 through 3.8.8 before 3.8.9. The autoload code checks classnames to be valid, using the "class_exists" function in PHP. In PHP 5.3, this function validates invalid names as valid, which can result in a Local File Inclusion.

Affected products

• Joomla!: from 2.5.0 through 3.8.8

References

• http://www.securityfocus.com/bid/104566
• http://www.securitytracker.com/id/1041245
• https://developer.joomla.org/security-centre/741-20180601-core-local-file-inclusion-with-php-5-3
• http://www.securityfocus.com/bid/104566
• http://www.securitytracker.com/id/1041245
• https://developer.joomla.org/security-centre/741-20180601-core-local-file-inclusion-with-php-5-3

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