Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's proto and defineGetter properties, which may allow an attacker to execute arbitrary code through crafted payloads.
Vendor
handlebars.js project vulnerabilities
2 published CVES affecting handlebars.js project, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 2
- Critical
- 1
- High
- 0
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Products
Latest handlebars.js project CVEs
Newest publication first
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CriticalCVSS 9.8 EPSS 7.1% PoC
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MediumCVSS 6.1 EPSS 2.6%
The handlebars package before 4.0.0 for Node.js allows remote attackers to conduct cross-site scripting (XSS) attacks by leveraging a template with an attribute that is not quoted.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.