CVE-2021-28834 – kramdown

Package

Manager: gem
Name: kramdown
Vulnerable Version: >=1.16.0 <2.3.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.01496 pctl0.80405

Details

Remote code execution in Kramdown Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

Metadata

Created: 2021-03-29T16:30:34Z
Modified: 2021-03-31T20:25:55Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-52p9-v744-mwjj/GHSA-52p9-v744-mwjj.json
CWE IDs: ["CWE-94"]
Alternative ID: GHSA-52p9-v744-mwjj
Finding: F422
Auto approve: 1