CVE-2026-75953: Joomla Extension - cmsjunkie.com - Open mail relay in J-BusinessDirectory < 6.2.3

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-19 · updated 2026-08-26
Weakness: CWE-201

Description

Joomla Extension - cmsjunkie.com - Open mail relay in J-BusinessDirectory < 6.2.3 - Recipient address was taken from the request (contact_id_offer / contact_id_event) instead of the server-side offer/event record, so mail could be sent to an arbitrary address.

Affected products

cmsjunkie.com J-BusinessDirectory extension for Joomla: 1.0.0-6.2.2

References

https://www.cmsjunkie.com/

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