CVE-2022-27777 (actionview): Possible XSS Vulnerability in Action View tag helpers

ADVISORIES

GEM

actionview

FRAMEWORK

Ruby on Rails

SEVERITY

CVSS v3.x: 6.1 (Medium)

PATCHED VERSIONS

~> 5.2.7, >= 5.2.7.1
~> 6.0.4, >= 6.0.4.8
~> 6.1.5, >= 6.1.5.1
>= 7.0.2.4

DESCRIPTION

There is a possible XSS vulnerability in Action View tag helpers. Passing untrusted input as hash keys can lead to a possible XSS vulnerability. This vulnerability has been assigned the CVE identifier CVE-2022-27777.

Versions Affected: ALL Not affected: NONE Fixed Versions: 7.0.2.4, 6.1.5.1, 6.0.4.8, 5.2.7.1

Impact

If untrusted data is passed as the hash key for tag attributes, there is a possibility that the untrusted data may not be properly escaped which can lead to an XSS vulnerability.

Impacted code will look something like this:

check_box_tag('thename', 'thevalue', false, aria: { malicious_input =&gt; 'thevalueofaria' })

Where the "malicious_input" variable contains untrusted data.

All users running an affected release should either upgrade or use one of the workarounds immediately.

Releases

The FIXED releases are available at the normal locations.

Workarounds

Escape the untrusted data before using it as a key for tag helper methods.

RubySec