CVE-2026-75953 Joomla Extension - cmsjunkie.com - Open mail relay in J-BusinessDirectory < 6.2.3
Attackers can send emails to arbitrary addresses via the J-BusinessDirectory extension by manipulating request parameters, enabling spam or phishing campaigns.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75953?
CVE-2026-75953 is a high-severity vulnerability in cmsjunkie.com J-BusinessDirectory extension for Joomla, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-201
Which versions are affected by CVE-2026-75953?
How do I fix CVE-2026-75953?
No fix has been published for CVE-2026-75953 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75953 being exploited?
There is no known exploitation of CVE-2026-75953 in the wild and no public exploit code.
Sources
Also known as GHSA-vm4v-78cf-23mr.