CVE-2023-23630

Name: CVE-2023-23630
Creator: NVD / NIST
Published: 2023-02-01T01:15:08.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2023-23630 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Eta is an embedded JS templating engine that works inside Node, Deno, and the browser. XSS attack - anyone using the Express API is impacted. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

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`.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.61%

44.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Eta.Js	Eta	< 2.0.0

References

https://github.com/eta-dev/eta/commit/5651392462ee0ff19d77c8481081a99e5b9138ddPatch, Third Party Advisory
https://github.com/eta-dev/eta/releases/tag/v2.0.0Release Notes, Third Party Advisory
https://github.com/eta-dev/eta/security/advisories/GHSA-xrh7-m5pp-39r6Third Party Advisory
https://github.com/eta-dev/eta/commit/5651392462ee0ff19d77c8481081a99e5b9138ddPatch, Third Party Advisory
https://github.com/eta-dev/eta/releases/tag/v2.0.0Release Notes, Third Party Advisory
https://github.com/eta-dev/eta/security/advisories/GHSA-xrh7-m5pp-39r6Third Party Advisory

Timeline

Published: Feb 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23630?

How severe is CVE-2023-23630?

CVE-2023-23630 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23630?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-23630?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST