Vulnerability identifier: #VU38701

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-1000054

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Rocket.Chat
Web applications / Forum & blogging software

Vendor: Rocket.Chat Technologies Corp.

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Rocket.Chat version 0.8.0 and newer is vulnerable to XSS in the markdown link parsing code for messages.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Rocket.Chat: 0.8.0 - 0.57.2

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External links
http://www.theblazehen.com/posts/CVE-2017-xxxxxx-rocketchat-xss-with-markdown-url-handling-in-messages/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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