Vulnerability Details CVE-2021-32822
The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 52.8%
CVSS Severity
CVSS v3 Score 4.0
CVSS v2 Score 5.0
References
Products affected by CVE-2021-32822
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cpe:2.3:a:hbs_project:hbs:-