Vulnerability identifier: #VU26248

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2020-5267

CWE-ID:

Exploitation vector: Network

Exploit availability:

Vulnerable software:
ActionView
Server applications / Frameworks for developing and running applications

Vendor: Rails

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in the "j" and "escape_javascript" methods . A remote attacker can trick the victim to follow a specially crafted link 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 updates from vendor's website.

Vulnerable software versions

ActionView: 5.0.0 - 6.0.2.1

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Fixed software versions

CPE

• cpe:2.3:a:rails:actionview:6.0.2.1:*:*:*:*:ruby_on_rails:*:*

External links
http://www.openwall.com/lists/oss-security/2020/03/19/1
http://github.com/rails/rails/commit/033a738817abd6e446e1b320cb7d1a5c15224e9a
http://github.com/rails/rails/security/advisories/GHSA-65cv-r6x7-79hv
http://lists.debian.org/debian-lts-announce/2020/03/msg00022.html

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?