vlbook 1.2 XSS Bug

2006-06-28 / 2006-06-29
Credit: omnipresent
Risk: Low
Local: No
Remote: Yes

CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

vlBook 1.02 Advisory ==================== Date: ----- 2005 June 23 Product: -------- vlBook 1.02 &#169; 2005 Vendor: ------- http://vlab.info/ Descriptions: ------------- The vlbook is a free, open source and light-weight guestbook written in PHP using flat files to store messages and settings. It comes with install script for quick and effortless installation. Features include a WYSIWYG Editor, template based skins, multilingual support, avatars packs and more. Exploit(s)/Vulnerability(ies): ------------------------------ - XSS Vulnerability - This product is vulnerable to an XSS Attack. The variable message is not properly sanitised before being used; so a malicious people can inject arbitrary XSS code. PoC 0f XSS: ----------- If an attacker put in the field "Message*:" this code: <script>alert("XSS ATTACK")</script> Further information: -------------------- googledorks: Powered by vlBook 1.02 &#169; 2005 Vendor Status: -------------- Informed but I've not received the reply. Credits: -------- Omnipresent omnipresent (at) email (dot) it [email concealed]

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