Information ------------ Advisory by Netsparker. Name: XSS Vulnerability in Banner Effect Header Affected Software : Banner Effect Header Affected Versions: 1.2.7 and possibly below Vendor Homepage : https://wordpress.org/plugins/banner-effect-header/ Vulnerability Type : Cross-site Scripting Severity : Important CVE-ID: CVE-2015-1384 Netsparker Advisory Reference : NS-15-002 Description ----------- By exploiting a Cross-site scripting vulnerability the attacker can hijack a logged in user’s session. This means that the malicious hacker can change the logged in user’s password and invalidate the session of the victim while the hacker maintains access. As seen from the XSS example in this article, if a web application is vulnerable to cross-site scripting and the administrator’s session is hijacked, the malicious hacker exploiting the vulnerability will have full admin privileges on that web application. Technical Details ----------------- Proof of Concept URLs for XSS in Banner Effect Header: URL: /wp-admin/options-general.php?page=BannerEffectOptions Parameter Name: banner_effect_divid Parameter Type: Post Attack Pattern: " onclick=alert(1) " For more information on cross-site scripting vulnerabilities read the following article on Cross-site Scripting (XSS) - https://www.netsparker.com/web-vulnerability-scanner/vulnerability-security-checks-index/crosssite-scripting-xss/ Advisory Timeline -------------------- 21/01/2015 - First Contact 29/01/2015 - Vulnerability fixed 29/01/2015 - Advisory released Solution -------- Download version 1.2.8 which includes fix for this vulnerability. Credits & Authors ----------------- These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner - https://www.netsparker.com/web-vulnerability-scanner/ About Netsparker ---------------- Netsparker finds and reports security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities, hence it is the first and only False Positive Free web application security scanner. For more information visit our website on https://www.netsparker.com