Previously fixed isses with TinyMCE have not been backported in latest security patch

[dmf-janw]

Preconditions and environment

With the downgrade from TinyMCE 7 back to version 6 a few previously fixed issues have been reintroduced. Namely #39262 and #39263.

For #39263 the relevant change done in d1b5797 is only present in the 2.4.8-beta2 release tag. In all four release tags of the latest security patch (2.4.4-p12, 2.4.5-p11, 2.4.6-p9 and 2.4.7-p4) the exclude path still refers to the now incorrect /tiny_mce/ path.

Similarly, the PR which fixes #39262 (https://github.com/magento/magento2/pull/39258/files, a71df16) is not present in any of the latest tags as well.

Steps to reproduce

The erroneous behaviour of #39263 can be reproduced by enabling production mode and javascript minification and attempting to use TinyMCE in the admin area.

#39262 is not triggered in the default configuration. The plugins are attempted to be loaded if, as described in the original issue, one has the module Magenerds_PageDesigner installed (see: Magenerds/PageDesigner#54).

Expected result

TinyMCE 6 works in the default configuration with JavaScript minification enabled and Magenerds_PageDesigner (or any other method of attempting to load the plugins in the editor) installed.

Actual result

TinyMCE6 fails to load in the aforementioned circumstances.

Additional information

This can be worked around manually.

#39263 can be fixed by adding something akin to:

    'system' => [
        'default' => [
            'dev' => [
                'js' => [
                    'minify_files' => '1',
                    'minify_exclude' => [
                        'tiny_mce_6' => '/tiny_mce_6/',
                    ]
                ],
                'css' => [
                    'minify_files' => '1',
                    'minify_exclude' => [
                        'tiny_mce_6' => '/tiny_mce_6/',
                    ]
                ]
            ]
        ]
    ]

to config.php.

#39262 can only be fixed by manually patching the contents of lib/web/mage/adminhtml/wysiwyg/tiny_mce/plugins/magentovariable/editor_plugin.js and lib/web/mage/adminhtml/wysiwyg/tiny_mce/plugins/magentowidget/editor_plugin.js. Both paths are located in the lib directory which is supposed to be added by the installation process and not be edited manually. This introduces additional maintenance load for every installation, as the change will have to be manually carried over for each subsequent patch in which the bug is still present.

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 @dmf-janw. 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.

• For more details, review the Magento Contributor Assistant documentation.
• Add a comment to assign the issue: @magento I am working on this
• To learn more about issue processing workflow, refer to the Code Contributions.

---

Join Magento Community Engineering Slack and ask your questions in #github channel.
⚠️ According to the Magento Contribution requirements, all issues must go through the Community Contributions Triage process. Community Contributions Triage is a public meeting.
🕙 You can find the schedule on the Magento Community Calendar page.
📞 The triage of issues happens in the queue order. If you want to speed up the delivery of your contribution, join the Community Contributions Triage session to discuss the appropriate ticket.

[hostep]

Yeah, I noticed the same last week and brought it to the attention of the security team on Slack to try to get those fixes included in the next security releases (in April 2025), no positive feedback yet besides the fact that they told me they would consider it.

[m2-assistant]

Hi @engcom-Hotel. 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

  - 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!
• 5. Add label Issue: Confirmed once verification is complete.
• 6. Make sure that automatic system confirms that report has been added to the backlog.

[engcom-Hotel]

Thanks @dmf-janw for raising the concern!

We are confirming this issue to speed-up the things.

Thanks again.

[github-jira-sync-bot]

✅ Jira issue https://jira.corp.adobe.com/browse/AC-14160 is successfully created for this GitHub issue.