CVE-2021-32819 describes a remote code execution (RCE) vulnerability in Squirrelly, a JavaScript template engine, specifically when used with ExpressJS. This high-severity flaw (CVSS 8.8) allows attackers to overwrite internal configuration options by mixing template data with engine settings via the Express render API, leading to RCE in downstream applications. While there is no evidence of active exploitation, a Nuclei template for this RCE exists, and the vulnerability has a high EPSS score, indicating a significant likelihood of future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.0.8CPE matchmatch criteria | cpe:2.3:a:squirrelly:squirrelly:8.0.8:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.