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CVE-2021-23784
Cross-site Scripting (XSS)
Medium5.4EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- snyk
Description
This affects the package tempura before 0.4.0. If the input to the esc function is of type object (i.e an array) it is returned without being escaped/sanitized, leading to a potential Cross-Site Scripting vulnerability.
Timeline
ID reserved
By snyk
- 10 months later
· 10 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| snykCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P |
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.3% · top 30% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Weakness
- Cross-site Scripting (XSS)
- CWE-79 (opens in a new tab)All about CWE-79 and its CVEs
Affected products
tempura
- affected unspecified – < 0.4.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmtempuraGHSA-w4v7-hwx7-9929 (opens in a new tab)
References (3)
- https://snyk.io/vuln/SNYK-JS-TEMPURA-1569633 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/lukeed/tempura/commit/58a5c3671e2f36b26810e77ead9e0dd471902f9b (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/lukeed/tempura/releases/tag/v0.4.0 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-w4v7-hwx7-9929 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-23784)Record last updated .