CVE-2021-32817
More specifically, the layout parameter may trigger file disclosure vulnerabilities in downstream applications.
Does this matter?
Lower severity and a low EPSS score (1.27%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 1.27% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-94
- Affected
- express handlebars project/express handlebars
- Source
- security-advisories@github.com
References
- https://github.com/TryGhost/express-hbs#%EF%B8%8F-this-creates-a-potential-security-vulnerabilityRelease Notes, Third Party Advisory
- https://github.com/TryGhost/express-hbs/commit/ff6fad6e357699412d4e916273314e5e7af1500ePatch, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2021-019-express-hbs/Exploit, Patch, Third Party Advisory
- https://www.npmjs.com/package/express-hbsProduct
- https://github.com/TryGhost/express-hbs#%EF%B8%8F-this-creates-a-potential-security-vulnerabilityRelease Notes, Third Party Advisory
- https://github.com/TryGhost/express-hbs/commit/ff6fad6e357699412d4e916273314e5e7af1500ePatch, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2021-019-express-hbs/Exploit, Patch, Third Party Advisory
- https://www.npmjs.com/package/express-hbsProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.