SB2022102538 - Multiple vulnerabilities in Joomla!

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2022-27913)

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.

2) Information exposure through externally-generated error message (CVE-ID: CVE-2022-27912)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to Joomla sites in publicly enabled debug mode expose data of previous requests. A remote attacker can obtain sensitive information.

Remediation

Install update from vendor's website.

References

• https://developer.joomla.org/security-centre/886-20221002-core-reflected-xss-in-various-components.html
• https://developer.joomla.org/security-centre/885-20221001-core-disclosure-of-critical-information-in-debug-mode.html