Vulnerability · Published Apr 24, 2023 · Assigned by mitre
CVE-2023-30533
High 7.8
In plain English
A high-severity prototype pollution in the xlsx package (npm). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)1.0%top 37.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | xlsx | no fix listed | GHSA-4r6h-8v6p-xvw6 |
Affected products (as reported)
Weakness: CWE-1321 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H