PT-2021-19950 · Unknown · Express-Hbs

Agustin Gianni + 1 · Published 2021-05-14 · Updated 2024-03-06 · CVE-2021-32817

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions express-hbs (affected versions not specified)

Description The issue arises from express-hbs mixing pure template data with engine configuration options through the Express render API, potentially leading to file disclosure vulnerabilities in downstream applications. This is somewhat restricted, as only files with existing extensions can be included. Files lacking an extension will have .hbs appended to them.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Code Injection

Information Disclosure

Weakness Enumeration

CWE-94

CWE-200

Related Identifiers

BIT-HANDLEBARS-2021-32817

CVE-2021-32817

GHSA-RWXP-HWWF-653V

Affected Products

Express-Hbs

References · 10

• 🔥 https://securitylab.github.com/advisories/GHSL-2021-019-express-hbs · Exploit
• https://github.com/TryGhost/express-hbs/commit/ff6fad6e357699412d4e916273314e5e7af1500e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-32817 · Security Note
• https://osv.dev/vulnerability/BIT-handlebars-2021-32817 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-32817 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-rwxp-hwwf-653v · Vendor Advisory
• https://github.com/TryGhost/express-hbs#%EF%B8%8F-this-creates-a-potential-security-vulnerability · Note
• https://github.com/TryGhost/express-hbs · Note
• https://t.me/cvenotify/14477 · Telegram Post
• https://npmjs.com/package/express-hbs · Note