Bump craftcms/cms from 5.8.19 to 5.8.21

[dependabot]

Bumps craftcms/cms from 5.8.19 to 5.8.21.

Release notes

Sourced from craftcms/cms's releases.

5.8.21

• Improved the performance of saving nested elements on multi-site installs with a custom propagation method. (#18126)
• Fixed a bug where remove buttons within multi-select Selectize inputs weren’t working if the input wasn’t focusend and fully in view. (#18079)
• Fixed an error that could occur when executing a GraphQL mutation when the lazyGqlTypes config setting was enabled. (#18014)
• Fixed a PHP error that could occur when creating a username that began or ended with an @. (#18123)
• Fixed a bug where assets with disallowed file extensions could be stored in the system’s temp directory. (#18049)
• Fixed a bug where font icons weren’t hidden from screen readers. (#18078)
• Fixed a bug where relation fields weren’t handling :empty:/:notempty: element query params properly if the field had multiple instances within a field layout. (#18092)
• Fixed a bug where user preferences were being respected for users who formerly had access to the control panel.
• Fixed a bug where nested entries could be reordered when their owner element was resaved programmatically. (#18121)
• Fixed RCE vulnerabilities. (GHSA-255j-qw47-wjh5, GHSA-742x-x762-7383)
• Fixed an SSRF vulnerability. (GHSA-x27p-wfqw-hfcc)
• Fixed a DoS vulnerability. (GHSA-v64r-7wg9-23pr)
• Fixed an information disclosure vulnerability. (GHSA-53vf-c43h-j2x9)

5.8.20

• Plugin licenses are now assigned immediately when installed via the plugin/install command. (#17871)
• Improved drag-n-drop performance. (#18019)
• Fixed a bug where assets with disallowed file extensions could still be uploaded to the system’s temp directory. (#18015)
• Fixed an error that could occur when an array was passed to an asset query’s folderPath param. (#18056)
• Fixed a bug where the Live Preview drag bar wasn’t easily draggable when a nested slideout was open. (#17781)
• Fixed a bug where nested slideouts within Live Preview weren’t getting resized when the window was resized.
• Fixed a bug where element index table column sort buttons weren’t being focused after activation. (#18021)
• Fixed a bug where component select inputs could show a “Choose” button even if disabled. (#18032)
• Fixed a bug where plugin licenses in the project config could be discarded when plugins were installed. (#18042)
• Fixed a bug where logging in with a passkey wasn’t possible in some environments. (#18048)
• Fixed a bug where elements weren’t selectable within element select modals when searching, if the Structure view mode had been selected. (#18051)

Changelog

Sourced from craftcms/cms's changelog.

5.8.21 - 2025-12-04

• Improved the performance of saving nested elements on multi-site installs with a custom propagation method. (#18126)
• Fixed a bug where remove buttons within multi-select Selectize inputs weren’t working if the input wasn’t focusend and fully in view. (#18079)
• Fixed an error that could occur when executing a GraphQL mutation when the lazyGqlTypes config setting was enabled. (#18014)
• Fixed a PHP error that could occur when creating a username that began or ended with an @. (#18123)
• Fixed a bug where assets with disallowed file extensions could be stored in the system’s temp directory. (#18049)
• Fixed a bug where font icons weren’t hidden from screen readers. (#18078)
• Fixed a bug where relation fields weren’t handling :empty:/:notempty: element query params properly if the field had multiple instances within a field layout. (#18092)
• Fixed a bug where user preferences were being respected for users who formerly had access to the control panel.
• Fixed a bug where nested entries could be reordered when their owner element was resaved programmatically. (#18121)
• Fixed RCE vulnerabilities. (GHSA-255j-qw47-wjh5, GHSA-742x-x762-7383)
• Fixed an SSRF vulnerability. (GHSA-x27p-wfqw-hfcc)
• Fixed a DoS vulnerability. (GHSA-v64r-7wg9-23pr)
• Fixed an information disclosure vulnerability. (GHSA-53vf-c43h-j2x9)

5.8.20 - 2025-11-18

• Plugin licenses are now assigned immediately when installed via the plugin/install command. (#17871)
• Improved drag-n-drop performance. (#18019)
• Fixed a bug where assets with disallowed file extensions could still be uploaded to the system’s temp directory. (#18015)
• Fixed an error that could occur when an array was passed to an asset query’s folderPath param. (#18056)
• Fixed a bug where the Live Preview drag bar wasn’t easily draggable when a nested slideout was open. (#17781)
• Fixed a bug where nested slideouts within Live Preview weren’t getting resized when the window was resized.
• Fixed a bug where element index table column sort buttons weren’t being focused after activation. (#18021)
• Fixed a bug where component select inputs could show a “Choose” button even if disabled. (#18032)
• Fixed a bug where plugin licenses in the project config could be discarded when plugins were installed. (#18042)
• Fixed a bug where logging in with a passkey wasn’t possible in some environments. (#18048)
• Fixed a bug where elements weren’t selectable within element select modals when searching, if the Structure view mode had been selected. (#18051)

Commits

• 8582f04 Finish 5.8.21
• e53d627 Merge branch '4.x' of https://github.com/craftcms/cms into 5.x
• b5f17cd Finish 4.16.17
• 6e608a1 Fixed Fixed GHSA-255j-qw47-wjh5, part 2
• 77c7635 Merge branch '4.x' of https://github.com/craftcms/cms into 5.x
• 20db16e Merge commit from fork
• 4bcb0db Fixed GHSA-53vf-c43h-j2x9
• 52c1151 Merge branch '4.x' of https://github.com/craftcms/cms into 5.x
• f83d4e0 Merge commit from fork
• 1718011 Fixed GHAS-v64r-7wg9-23pr
• Additional commits viewable in compare view

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