CVE-2023-23630 json
Cross-site (XSS) vulnerability with Express API in Eta
published 2023-01-31 3 y ago modified 2026-06-17 4 mo ago also GHSA-xrh7-m5pp-39r6 , EUVD-2023-0593
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
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`.
Patch / fix
- npm eta 2.0.0
- eta.js eta 2.0.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | eta | <2.0.0 |
2.0.0 |
Affected products
- eta-dev eta
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/eta-dev/eta/commit/5651392462ee0ff19d77c8481081a99e5b9138dd
web, patch, third-party-advisory
-
github.com
/eta-dev/eta/security/advisories/GHSA-xrh7-m5pp-39r6
web, third-party-advisory
-
github.com
/eta-dev/eta/releases/tag/v2.0.0
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-23630
advisory
-
github.com
/eta-dev/eta
package
Sources
- CVE List CVE-2023-23630
- GitHub Advisory GHSA-xrh7-m5pp-39r6
- NVD CVE-2023-23630
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