SB2019031701 - Multiple vulnerabilities in JEvents for Joomla!

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) SQL injection (CVE-ID: N/A)

The vulnerability allows a remote privileged attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker with privileges to administer JEvents can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

2) Stored cross-site scripting (CVE-ID: N/A)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• https://vel.joomla.org/resolved/2218-jevents-3-4-49-various
• https://vel.joomla.org/vel-blog/2218-jevents-3-4-49-various