Code execution via unvalidated Python eval formula
Published Apr 17, 2025 · Updated Apr 22, 2025
Code injection in Pycel 1.0b30 and earlier allows attackers to execute arbitrary code by supplying a spreadsheet containing a crafted formula. Pycel's formula evaluation path does not validate and reject Python's eval function as an unknown Excel function, allowing a cell expression to invoke imported modules and system commands. Processing an attacker-controlled workbook is required, and successful exploitation runs commands with the privileges of the Pycel host process.
Summary
What happened
Code injection in Pycel 1.0b30 and earlier allows attackers to execute arbitrary code by supplying a spreadsheet containing a crafted formula. Pycel's formula evaluation path does not validate and reject Python's eval function as an unknown Excel function, allowing a cell expression to invoke imported modules and system commands. Processing an attacker-controlled workbook is required, and successful exploitation runs commands with the privileges of the Pycel host process.
The record
- CVE
- CVE-2024-53924
- Published
- Apr 17, 2025
- Updated
- Apr 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-94
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 17, 2025CVE publishedPublication date reported by the CVE source.
- Apr 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CVE-2024-53924 spreadsheet-formula proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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