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A cross-site scripting (XSS) vulnerability exists in MISP before version 2.5.28, specifically in the app/View/Elements/Workflows/executionPath.ctp file. This allows an attacker to inject arbitrary JavaScript or HTML into the workflow execution path, which can be executed in the context of a user's browser session.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a comprehensive Proof of Concept (PoC) exploit for a stored Cross-Site Scripting (XSS) vulnerability in MISP version 2.5.27 and earlier. The vulnerability exists in the workflow system, specifically in the 'Trigger Name' field, which is not properly sanitized before being rendered in the browser. The main exploit script (MISP_2_5_27_Stored_XSS_Exploit_PoC_Franck_FERMAN.py) is a full-featured tool that allows an authenticated attacker to inject arbitrary JavaScript payloads into the workflow, with multiple modes for alerting, logging, and exfiltrating sensitive data. The lightweight script in the Snippets directory provides a minimal PoC that simply triggers an alert box. The redirector.py script acts as a simple HTTP server to receive exfiltrated data from the victim's browser and redirect them back to a legitimate page. The exploit requires authenticated access to the MISP API and targets endpoints such as /workflows/add, /workflows/edit/{id}, and /workflows/view/{id}. The attack vector is browser-based, as the payload executes in the context of users viewing the workflow graph, but also involves network communication for exfiltration. The repository is well-structured, with clear separation between the main exploit, PoC, and exfiltration server components.
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