Vulnerability identifier: #VU96271
Vulnerability risk: Medium
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Joomla!
Web applications /
CMS
Vendor: Joomla!
Description
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Joomla!: 5.1.0 - 5.1.2, 5.0.0 - 5.0.3, 4.4.0 - 4.4.6, 4.3.0 - 4.3.4, 4.2.0 - 4.2.9, 4.1.0 - 4.1.5, 4.0.0 - 4.0.6, 3.10.0 - 3.10.16, 3.9.0 - 3.9.28, 3.8.0 - 3.8.13, 3.7.0 - 3.7.5, 3.6.0 - 3.6.5, 3.5.0 - 3.5.9, 3.0.0 - 3.0.4, 3.3.0 - 3.3.6, 3.2.0 - 3.2.7, 3.4.0 - 3.4.8, 3.1.0 - 3.1.6
External links
http://developer.joomla.org/security-centre/946-20240805-core-xss-vectors-in-outputfilter-strip-methods.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.