Stored XSS in MISP

1) Stored cross-site scripting

EUVDB-ID: #VU19559

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-14286

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability in the "app/webroot/js/event-graph.js" exists due to insufficient sanitization of user-supplied data in the event-graph view when a user toggles the event graph view. A remote attacker can craft a malicious MISP event and permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MISP: 2.4.111

External links

http://github.com/MISP/MISP/commit/26bedd8a68c32a2f14460a8eac2a9fb09923392b

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.