Questions tagged [excel]

A spreadsheet program that is part of Microsoft Office. Security issues can involve e.g. macros and code execution in formulas. See also [office].

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1answer
317 views

Exfiltrate data by injecting functions in Excel 2007 file rendered with PHP

I need to extract data from inside an Excel fille using Excel 2007 functions. The concept is somewhat related to stored XSS type of data exfiltration only that I need to use Excel 2007 functions (...
6
votes
1answer
549 views

External command execution in Excel formulas

It's known that MS Excel functionality of external references will allow executing arbitrary commands from its formulas with appropriate security warnings and confirmation required from the user. E.g....
6
votes
2answers
16k views

Excel 2007 Encryption Strength

With a strong password of 10+ characters, mixed case, etc... is the encryption of an Excel 2007 document secure enough to create reasonably strong defense against a brute force attack? What ...