#VU53001 Information disclosure in Ruby on Rails

Published: 2021-05-10

Vulnerability identifier: #VU53001

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22885


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ruby on Rails
Universal components / Libraries / Scripting languages

Vendor: Rails


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper input validation in the Action Pack within the "redirect_to" or "polymorphic_url" helper. A remote attacker can gain unauthorized access to sensitive information on the system.

Install updates from vendor's website.

Vulnerable software versions

Ruby on Rails: 1.9.5, 1.2.0 - 1.2.6, 1.1.0 - 1.1.6, 1.0.0, 2.0.0

External links

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.

Latest bulletins with this vulnerability