PoC Index

CVE-2021-32822

MEDIUM 5.3EPSS 1.2%

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.

CVSS v3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v3.1
4.0 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v3.1
4.0 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
CVSS v2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS
1.18% chance of exploitation in the next 30 days, 65th percentile
Published
2021-08-16
Updated
2024-08-03

Proof-of-concept exploits (1)

References

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