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Bug #95581
open
FileNameValidator wrongly allows empty strings
Status:
Needs Feedback
Priority:
Should have
Assignee:
-
Category:
Security
Target version:
-
Start date:
2021-10-12
Due date:
% Done:
0%
Estimated time:
TYPO3 Version:
10
PHP Version:
Tags:
Complexity:
Is Regression:
Sprint Focus:
Description
\TYPO3\CMS\Core\Resource\Security\FileNameValidator->isValid() returns true for an empty string. This is wrong. Filenames may not be empty.
(Category Security because the class is in the Security namespace, re-categorize if this is wrong)
The according Test should also check for empty strings.
Updated by Oliver Hader over 2 years ago
- Status changed from New to Needs Feedback
Can you please describe your use-case? What is the origin of an empty filename? Thx in advance!
Updated by Stefan P over 2 years ago
User input, of course. I expect a FileNameValdiator to correctly validate file names. If everyone has to provide additional checks on the file name string anyways, then I wonder why to privide a Validator class at all?
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