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CVE-2023-7101

Published: Dec 24, 2023

Modified: Oct 21, 2025

PUBLISHED

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.

Vendor	Product	Versions
Douglas Wilson	Spreadsheet::ParseExcel	affected `0.65`

Weaknesses (CWE)

References

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0019.md

https://https://www.cve.org/CVERecord?id=CVE-2023-7101

https://https://metacpan.org/dist/Spreadsheet-ParseExcel

https://https://github.com/haile01/perl_spreadsheet_excel_rce_poc

https://github.com/jmcnamara/spreadsheet-parseexcel/blob/c7298592e102a375d43150cd002feed806557c15/lib/Spreadsheet/ParseExcel/Utility.pm#L171

http://www.openwall.com/lists/oss-security/2023/12/29/4

https://lists.debian.org/debian-lts-announce/2023/12/msg00025.html

https://https://github.com/jmcnamara/spreadsheet-parseexcel/commit/bd3159277e745468e2c553417b35d5d7dc7405bc

https://lists.fedoraproject.org/archives/list/[email protected]/message/IFEHKULQRVXHIV7XXK2RGD4VQN6Y4CV5/

https://lists.fedoraproject.org/archives/list/[email protected]/message/M2FIWDHRYTAAQLGM6AFOZVM7AFZ4H2ZR/

https://security.metacpan.org/2024/02/10/vulnerable-spreadsheet-parsing-modules.html

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