GHSA-h6mq-3cj6-h738 – showdown

Package

Manager: npm
Name: showdown
Vulnerable Version: >=0 <1.9.1

Severity

Level: Low

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

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

EPSS: N/A pctlN/A

Details

Reverse Tabnabbing in showdown Versions of `showdown` prior to 1.9.1 are vulnerable to [Reverse Tabnabbing](https://www.owasp.org/index.php/Reverse_Tabnabbing). The package uses `target='_blank'` in anchor tags, allowing attackers to access `window.opener` for the original page when opening links. This is commonly used for phishing attacks. ## Recommendation Upgrade to version 1.9.1 or later.

Metadata

Created: 2020-09-03T23:21:16Z
Modified: 2021-10-01T16:12:36Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/09/GHSA-h6mq-3cj6-h738/GHSA-h6mq-3cj6-h738.json
CWE IDs: ["CWE-1022"]
Alternative ID: N/A
Finding: F097
Auto approve: 1