#VU20403 Cross-site scripting in jDownloads - CVE-2018-10068
Published: August 27, 2019 / Updated: June 17, 2021
Vulnerability identifier: #VU20403
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-10068
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
jDownloads
jDownloads
Software vendor:
Joomla!
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 in "/administrator/components/com_jdownloads/assets/plupload/js/Moxie.swf" file passed via the "target%g" parameter. 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.
PoC:
http://[host]/administrator/components/com_jdownloads/assets/plupload/js/Moxie.swf?target%g=alert&uid%g=nice
Remediation
Install updates from vendor's website.