SB2024082103 - Multiple vulnerabilities in Joomla!



SB2024082103 - Multiple vulnerabilities in Joomla!

Published: August 21, 2024

Security Bulletin ID SB2024082103
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 40% Low 60%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Cross-site scripting (CVE-ID: CVE-2024-40743)

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 within the Outputfilter::stripImages and Outputfilter::stripIframes methods. A remote attacker can inject 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) Improper access control (CVE-ID: CVE-2024-27187)

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to improper access restrictions for backend profile view. A remote user can overwrite their username when this option is disabled by the application.


3) Stored cross-site scripting (CVE-ID: CVE-2024-27186)

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

The vulnerability exists due to insufficient sanitization of user-supplied data in HTML mail templates. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.


4) Input validation error (CVE-ID: CVE-2024-27185)

The vulnerability allows a remote attacker to posing application's cache.

The vulnerability exists due to insufficient validation of user-supplied input in pagination feature. A remote attacker can supply specially crafted input to the application and poison application's cache.


5) Open redirect (CVE-ID: CVE-2024-27184)

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data when handling internal URLs. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.


Remediation

Install update from vendor's website.