CVE-2023-30533
xlsx is vulnerable to Prototype Pollution
78
High Risk
This Affects:
xlsxTL;DR
Affected versions of this package are vulnerable to prototype pollution when processing a specially crafted file. An attacker able to supply malicious input may inject or modify properties on JavaScript object prototypes, potentially leading to unexpected application behavior, security control bypasses, denial of service, or other impacts depending on how the application uses affected objects.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
xlsx is vulnerable to Prototype Pollution in versions < 0.19.3.
How to fix this
Because of a problem with their NPM account, new versions are no longer updated. Update using the instructions found here: https://docs.sheetjs.com/docs/getting-started/installation/nodejs/. Or migrate to a community-maintained fork like @e965/xlsx.
Links
cdn.sheetjs.com/advisories/CVE-2023-30533git.sheetjs.com/sheetjs/sheetjs/issues/2986git.sheetjs.com/sheetjs/sheetjs/src/branch/master/CHANGELOG.md
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SOC 2Compliant
ISO 27001Compliant