Vulnerability · Published Mar 2, 2022 · Assigned by GitHub_M

CVE-2022-23640Improper Restriction of XML External Entity Reference in Excel-Streaming-Reader

Critical 9.8

In plain English

A critical-severity XML external entity in excel-streaming-reader from monitorjbl. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.3%top 29.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavencom.monitorjbl:xlsx-streamer2.1.0GHSA-xvm2-9xvc-hx7f

Affected products (as reported)

VendorProductVersions
monitorjbl excel-streaming-reader < 2.1.0

Weakness: CWE-611 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References