CVE-2024-53924 Pycel allows code injection via a crafted formula
Attackers can execute arbitrary code by crafting malicious formulas in spreadsheets processed by the Pycel library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-53924?
CVE-2024-53924 is a critical code injection vulnerability in n/a, published on 17 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Pycel through 1.0b30, when operating on an untrusted spreadsheet, allows code execution via a crafted formula in a cell, such as one beginning with the =IF(A1=200, eval("__import__('os').system( substring.
Weakness: CWE-94
Which versions are affected by CVE-2024-53924?
3 open source packages ship an affected version, including pycel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pycel PyPI | All versions to 1.0-beta0 | None |
pycel PyPI | All versions to 1.0b30 | None |
pycel PyPI | All versions to 1.0b30 | None |
Products include Dgorissen Pycel.
How do I fix CVE-2024-53924?
No fix has been published for CVE-2024-53924 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2024-53924 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-53924 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-pw67-xjhq-389w, PYSEC-2025-177.