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TI-2023-14368 Aliases CVE-2023-30533GHSA-4r6h-8v6p-xvw6

SheetJS Community Edition before 0.19.3 allows Prototype Pollution via a crafted file.

Priority LOW 38CWE-1321Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.

Summary

SheetJS Community Edition before 0.19.3 allows Prototype Pollution via a crafted file. In other words. 0.19.2 and earlier are affected, whereas 0.19.3 and later are unaffected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00988 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—xlsx (npm)all versions—No fix listedGHSA-4r6h-8v6p-xvw6
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • xlsx (npm) Vendor— Affected all versions Fixed in — No fix listed GHSA-4r6h-8v6p-xvw6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sheetjs:sheetjs:*:*:*:*:*:node.js:*:*before 0.19.3VulnerableSheetjs
  • cpe:2.3:a:sheetjs:sheetjs:*:*:*:*:*:node.js:*:* Versions before 0.19.3 Vulnerable ·Sheetjs

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30533
  2. 2026-10-03 Alias added: GHSA-4r6h-8v6p-xvw6

References

Advisory 2

Other 5

  • TI-2021-11993 SheetJS and SheetJS Pro through 0.16.9 allows attackers to cause a denial of service (CPU… CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences