# CVE-2023-7101

## Summary

- **CVE ID:** CVE-2023-7101
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-95
- **Published:** Dec 24, 2023
- **Last Modified:** Sep 16, 2026

## Description

Spreadsheet::ParseExcel version 0.65 is a Perl module used for parsing Excel files. Spreadsheet::ParseExcel is vulnerable to an arbitrary code execution (ACE) vulnerability due to passing unvalidated input from a file into a string-type “eval”. Specifically, the issue stems from the evaluation of Number format strings (not to be confused with printf-style format strings) within the Excel parsing logic.

## Affected Products

- Douglas Wilson — Spreadsheet::ParseExcel (0.65)

## References

- [CNA](https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md)
- [CNA](https://https://www.cve.org/CVERecord?id=CVE-2023-7101)
- [CNA](https://https://metacpan.org/dist/Spreadsheet-ParseExcel)
- [CNA](https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc)
- [CNA](https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171)
- [CNA](http://www.openwall.com/lists/oss-security/2023/12/29/4)
- [CNA](https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html)
- [CNA](https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/)
- [CNA](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/)
- [CNA](https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-7101)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 83.31%
- **EPSS Percentile:** 99.2

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Jan 2, 2024
- **Due Date:** Jan 23, 2024

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._