What’s Vulnerable › Vulnerabilities

CVE-2020-13760

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-02 · updated 2026-06-17
• Weakness: CWE-352

Description

In Joomla! before 3.9.19, missing token checks in com_postinstall lead to CSRF.

Affected products

• Joomla!: from 3.7.1 before 3.9.19; 3.7.0, 3.7.0-alpha1, 3.7.0-alpha2, 3.7.0-beta1, 3.7.0-beta2, 3.7.0-beta3 (+5) — fixed in 3.9.19

How to fix

Upgrade to a fixed version: Joomla! 3.9.19. Check the vendor advisory for mitigations.

References

• https://developer.joomla.org/security-centre/817-20200605-core-csrf-in-com-postinstall
• https://developer.joomla.org/security-centre/817-20200605-core-csrf-in-com-postinstall

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