| Title | vtiger Vtiger CRM 6.4.0 Reflected Cross-Site Scripting |
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| Description | Hello team,
I have identified a Reflected Cross-Site Scripting (XSS) vulnerability in Vtiger CRM (version 6.4.0) that allows an attacker to bypass the current application filters. This vulnerability requires user interaction, as it is triggered when a victim clicks on a maliciously crafted link.
Technical Details
Vulnerable Parameter: _operation
Affected Endpoint: /modules/Mobile/index.php?
Vulnerability Type: Reflected XSS
Impact: An attacker can execute arbitrary JavaScript in the context of the victim’s session, potentially leading to session hijacking or other malicious actions.
Bypass Mechanism: The application does not adequately sanitize input, allowing JavaScript execution through an encoded payload.
Proof of Concept (PoC)
A crafted URL can be used to exploit this issue:
http://vmd39268.contaboserver.net:8080/modules/Mobile/index.php?_operation=%3Ca%20href=%20javascript%26colon;confirm(document.cookie)%3Eclick%20here
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| Source | ⚠️ https://www.vtiger.com/ |
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| User | Stux (UID 40142) |
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| Submission | 02/15/2025 17:00 (1 Year ago) |
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| Moderation | 02/23/2025 10:48 (8 days later) |
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| Status | Accepted |
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| VulDB entry | 296608 [vTiger CRM 6.4.0/6.5.0 index.php _operation cross site scripting] |
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| Points | 17 |
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