Reflected XSS in Ultimate Member WordPress Plugin

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Advisory ID:	HTB23277
Product:	Ultimate Member WordPress plugin
Vendor:	Ultimate Member
Vulnerable Versions:	1.3.28 and probably prior
Tested Version:	1.3.28
Advisory Publication:	October 29, 2015 [without technical details]
Vendor Notification:	October 29, 2015
Vendor Fix:	October 31, 2015
Public Disclosure:	November 19, 2015
Latest Update:	November 18, 2015
Vulnerability Type:	Cross-Site Scripting [CWE-79]
CVE Reference:	CVE-2015-8354
Risk Level:	Medium

CVSSv2 Base Score:	6.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N]
Solution Status:	Fixed by Vendor
Discovered and Provided:	High-Tech Bridge Security Research Lab
Advisory Details:
High-Tech Bridge Security Research Lab discovered vulnerability in Ultimate Member WordPress plugin, intended for managing users’ profiles. The vulnerability can be used against website administrators to perform Cross-Site Scripting (XSS) attacks. Anonymous attacker might be able to steal administrator's cookies, credentials and browser history, modify web page content to perform phishing attacks, or even to perform drive-by-download attacks by injecting malware into website pages when the website administrator follows a specially crafted link with XSS exploit. The vulnerability is caused by absence of filtration of input-data passed via the "_refer" HTTP GET parameter to "wp-admin/users.php" script, when "update" is set to value "confirm_delete". A remote unauthenticated attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. A simple exploit below will display JS popup with "ImmuniWeb" word: http://[host]/wp-admin/users.php?update=confirm_delete&_refer='"><script>ale rt('ImmuniWeb');</script>
How to Detect Cross-Site Scripting Vulnerabilities Website Security Test GDPR & PCI DSS Test Website CMS Security Test CSP & HTTP Headers Check WordPress & Drupal Scanning Try For Free Solution:
Update to Ultimate Member 1.3.29

References:
[1] High-Tech Bridge Advisory HTB23277 - https://www.immuniweb.com/advisory/HTB23277 - Reflected XSS in Ultimate Member WordPress Plugin. [2] Ultimate Member Wordpress plugin - http://ultimatemember.com/ - The easiest way to create powerful online communities and beautiful user profiles with WordPress. [3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures. [4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types. [5] ImmuniWeb® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing. [6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.

Previous Security Advisories with CWE-79:

HTB23276: Reflected XSS in Role Scoper WordPress Plugin

HTB23274: Two Reflected XSS Vulnerabilities in Calls to Action WordPress plugin

113.1k
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