High severityNVD Advisory· Published Feb 1, 2023· Updated Mar 10, 2025
Cross-site (XSS) vulnerability with Express API in Eta
CVE-2023-23630
Description
Eta is an embedded JS templating engine that works inside Node, Deno, and the browser. XSS attack - anyone using the Express API is impacted. The problem has been resolved. Users should upgrade to version 2.0.0. As a workaround, don't pass user supplied things directly to res.render.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
etanpm | < 2.0.0 | 2.0.0 |
Affected products
2- eta-dev/etav5Range: < 2.0.0
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
5- github.com/advisories/GHSA-xrh7-m5pp-39r6ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-23630ghsaADVISORY
- github.com/eta-dev/eta/commit/5651392462ee0ff19d77c8481081a99e5b9138ddghsax_refsource_MISCWEB
- github.com/eta-dev/eta/releases/tag/v2.0.0ghsax_refsource_MISCWEB
- github.com/eta-dev/eta/security/advisories/GHSA-xrh7-m5pp-39r6ghsax_refsource_CONFIRMWEB
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