SB2018040207 - Cross-site scripting in GetSimple CMS

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2018-9173)

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in admin/template/js/uploadify/uploadify.swf in GetSimple CMS 3.3.13. A remote non-authenticated attacker can trick the victim to follow a specially specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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://github.com/GetSimpleCMS/GetSimpleCMS/issues/1266
• https://www.exploit-db.com/exploits/44408/