GitHub Advisoryadvisory · npm
GHSA-rwxp-hwwf-653v Insecure template handling in express-hbs
MEDIUM
Official page ↗
- Aliases
- CVE-2021-32817
- Ecosystem
- npm
- Packages
- express-hbs
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-200, CWE-94
- Reviewed
- 2021-05-17
Affected packages
• npm express-hbs: <= 2.4.0 (no fix yet)
Description
express-hbs is an Express handlebars template engine. express-hbs mixes pure template data with engine configuration options through the Express render API. More specifically, the layout parameter may trigger file disclosure vulnerabilities in downstream applications. This potential vulnerability is somewhat restricted in that only files with existing extentions (i.e. file.extension) can be included, files that lack an extension will have .hbs appended to them. For complete details refer to the referenced GHSL-2021-019 report. Notes in documentation have been added to help users of express-hbs avoid this potential information exposure vulnerability.
Related
Alias · CVE (1)
- CVE-2021-32817 express-hbs is an Express handlebars template engine. vulnerability
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-32817 advisory
- https://github.com/TryGhost/express-hbs/commit/ff6fad6e357699412d4e916273314e5e7af1500e web
- https://github.com/TryGhost/express-hbs package
- https://github.com/TryGhost/express-hbs#%EF%B8%8F-this-creates-a-potential-security-vulnerability web
- https://securitylab.github.com/advisories/GHSL-2021-019-express-hbs advisory
- https://www.npmjs.com/package/express-hbs web