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cvelistGitHub_MCVELIST:CVE-2021-32817
HistoryMay 14, 2021 - 6:15 p.m.

CVE-2021-32817 File disclosure in express-hbs

2021-05-1418:15:14
CWE-200
GitHub_M
www.cve.org

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

6.9 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.9%

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.

CNA Affected

[
  {
    "product": "express-hbs",
    "vendor": "TryGhost",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.4.0"
      }
    ]
  }
]

5.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

6.9 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.9%

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