What’s Vulnerable › Vulnerabilities

CVE-2020-5182

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-03 · updated 2026-06-17
• Weakness: CWE-269

Description

The J-BusinessDirectory extension before 5.2.9 for Joomla! allows Reverse Tabnabbing. In some configurations, the link to the business website can be entered by any user. If it doesn't contain rel="noopener" (or similar attributes such as noreferrer), the tabnabbing may occur. To reproduce the bug, create a business with a website link that contains JavaScript to exploit the window.opener property (for example, by setting window.opener.location).

Affected products

• Cmsjunkie J-BusinessDirectory: before 5.2.9 — fixed in 5.2.9

How to fix

Upgrade to a fixed version: Cmsjunkie J-BusinessDirectory 5.2.9. Check the vendor advisory for mitigations.

References

• https://www.cmsjunkie.com/blog/joomla_business_directory_5-2-9_release/
• https://www.cmsjunkie.com/blog/joomla_business_directory_5-2-9_release/

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