[Bug] Magento 2.4.7 doesn't allow product photo's with capital letter file extension.

[pieterhollander]

Preconditions and environment

• Magento version 2.4.7

Steps to reproduce

1. Create a new product
2. Try to upload a picture with e.g. filename DSCN0018.JPG. The upload will fail.
3. Change the filename to DSCN0018.jpg. The upload succeeds.

Expected result

Image uploads with capital letter file extensions don't cause an error.

Actual result

After upgrading to 2.4.7, Image uploads with capital letter file extensions are refused.

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @phol. Thank you for your report.
To speed up processing of this issue, make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, Add a comment to the issue:

• @magento give me 2.4-develop instance - upcoming 2.4.x release
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[pieterhollander]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @phol. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @phol, unfortunately there is no ability to deploy Magento instance at the moment. Please try again later.

[pieterhollander]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @phol. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @phol, unfortunately there is no ability to deploy Magento instance at the moment. Please try again later.

[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

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• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
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• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

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[m2-assistant]

Hi @engcom-Dash. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
     Details

     - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
     - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
     - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

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[engcom-Dash]

Hi @phol

Thanks for reporting and collaboration.

Verified the issue on Magento 2.4 dev instance and the issue is reproducible.

Note : Verified the issue in 2.4.6 and the issue is not reproducable. We are able to upload files with capital letters.

Getting "Disallowed file type: when we try to upload product photo with capital letter file extension.

Steps to reproduce

1. Create a new product
2. Try to upload a picture with e.g. filename DSCN0018.JPG. The upload will fail.
3. Change the filename to DSCN0018.jpg. The upload succeeds.

Please take a look at the screenshots I've attached.

File with capital letters in the extension only :

File with capital letters in the file name and in the extension:

In 2.4.6 we can successfully upload file with capital letters in extensions.