Description
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.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
BenEdridge/CVE-2023-30533 ★ 12 · Aug 9, 2023
There were no proper POCs for CVE-2023-30533 so I made one. (Reported by Vsevolod Kokorin)
-
weareu/xlsx ★ 0 · Feb 19, 2026
SheetJS xlsx 0.18.5 fork with CVE-2023-30533 and CVE-2024-22363 fixes
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | xlsx | all versions | — | GHSA-4r6h-8v6p-xvw6 |
Advisories 2
- NCSC-2024-0333 Kwetsbaarheden verholpen in SAP producten NCSC-NL (Netherlands) · Aug 13, 2024
- WID-SEC-2023-1800 HCL BigFix: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 18, 2023