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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWg2bXEtM2NqNi1oNzM4
Reverse Tabnabbing in showdown
Versions of showdown prior to 1.9.1 are vulnerable to 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.
Permalink: https://github.com/advisories/GHSA-h6mq-3cj6-h738JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWg2bXEtM2NqNi1oNzM4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: about 3 years ago
Updated: 6 months ago
CVSS Score: 3.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Identifiers: GHSA-h6mq-3cj6-h738
References:
- https://snyk.io/vuln/SNYK-JS-SHOWDOWN-469487
- https://www.npmjs.com/advisories/1302
- https://github.com/showdownjs/showdown/pull/670
- https://github.com/showdownjs/showdown/commit/1cd281f0643ef613dc1d36847d4c6cbb22501d91
- https://github.com/advisories/GHSA-h6mq-3cj6-h738
Affected Packages
npm:showdown
Versions: < 1.9.1Fixed in: 1.9.1