CVE-2026-55790 Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22 and 4.0.0-RC1 through 4.17.15, an attacker with only a GitHub account can plant a JavaScript payload in a craftcms/cms issue title. When a Craft admin uses the CraftSupport widget’s "Give feedback" screen and types...

CVE-2026-55790 Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22 and 4.0.0-RC1 through 4.17.15, an attacker with only a GitHub account can plant a JavaScript payload in a craftcms/cms issue title. When a Craft admin uses the CraftSupport widget’s "Give feedback" screen and types...

CVE-2026-50284

Craft CMS (versions 5.0.0-RC1–5.9.21 and 4.0.0-RC1–4.17.14) has a privilege check flaw in AssetsController::actionDeleteFolder: it only enforces deleteAssets: for the target folder and does not enforce deletePeerAssets:, allowing a low-privilege user with folder-management rights on a shared volu...

CVE-2026-50284 Craft CMS: Missing peer-permission check in `AssetsController::actionDeleteFolder` allows deletion of other users' assets

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.21 and 4.0.0-RC1 through 4.17.14, theAssetsController::actionDeleteFolder only requires the deleteAssets: permission for the target folder. It never enforces deletePeerAssets:, even though Assets::deleteFoldersByIds...

CVE-2026-50284

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.21 and 4.0.0-RC1 through 4.17.14, theAssetsController::actionDeleteFolder only requires the deleteAssets: permission for the target folder. It never enforces deletePeerAssets:, even though Assets::deleteFoldersByIds...

CVE-2026-50284 Craft CMS: Missing peer-permission check in `AssetsController::actionDeleteFolder` allows deletion of other users' assets

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.21 and 4.0.0-RC1 through 4.17.14, theAssetsController::actionDeleteFolder only requires the deleteAssets: permission for the target folder. It never enforces deletePeerAssets:, even though Assets::deleteFoldersByIds...

CVE-2026-50283

Craft CMS versions 5.0.0-RC1–5.9.20 and 4.0.0-RC1–4.17.13 contain an authorization issue in AssetsController::actionReplaceFile that can delete a source asset without source delete permission when both assetId and sourceAssetId are supplied. The runtime loads assetId ($assetToReplace) and sourceA...

CVE-2026-50283 Craft CMS: Unauthorized Deletion of Source Assets During File Replacement

Craft CMS is a content management system CMS. Versions 5.0.0-RC1 through 5.9.20, and 4.0.0-RC1 through 4.17.13 contain an authorization issue in the AssetsController::actionReplaceFile that can delete a source asset without source delete permission by supplying both assetId and sourceAssetId...

CVE-2026-50283

Craft CMS is a content management system CMS. Versions 5.0.0-RC1 through 5.9.20, and 4.0.0-RC1 through 4.17.13 contain an authorization issue in the AssetsController::actionReplaceFile that can delete a source asset without source delete permission by supplying both assetId and sourceAssetId...

CVE-2026-50283 Craft CMS: Unauthorized Deletion of Source Assets During File Replacement

Craft CMS is a content management system CMS. Versions 5.0.0-RC1 through 5.9.20, and 4.0.0-RC1 through 4.17.13 contain an authorization issue in the AssetsController::actionReplaceFile that can delete a source asset without source delete permission by supplying both assetId and sourceAssetId...

CVE-2026-55793

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22, an author-level control panel user can store a malicious JavaScript payload in an entry title. When an admin, or any control panel user with saveEntries for the same Structure section, drags another entry under th...

CVE-2026-55793 Craft CMS: Stored XSS via Structure entry title in table view

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22, an author-level control panel user can store a malicious JavaScript payload in an entry title. When an admin, or any control panel user with saveEntries for the same Structure section, drags another entry under th...

CVE-2026-55793

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22, an author-level control panel user can store a malicious JavaScript payload in an entry title. When an admin, or any control panel user with saveEntries for the same Structure section, drags another entry under th...

CVE-2026-55793

Craft CMS versions 5.0.0-RC1–5.9.22 are affected by a stored XSS in a Structure entry title. An author-level control panel user can insert malicious JavaScript into an entry title. When a victim with saveEntries permission drags another entry under the poisoned one in table view, the payload exec...

CVE-2026-55793 Craft CMS: Stored XSS via Structure entry title in table view

Craft CMS is a content management system CMS. In versions 5.0.0-RC1 through 5.9.22, an author-level control panel user can store a malicious JavaScript payload in an entry title. When an admin, or any control panel user with saveEntries for the same Structure section, drags another entry under th...

CVE-2026-54720

Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the "Insert media from web" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/...

PT-2026-54860

Name of the Vulnerable Software and Affected Versions Craft CMS versions 4.0.0-RC1 through 4.17.9 Craft CMS versions 5.0.0-RC1 through 5.9.9 Description Control panel users with the utility:system-messages permission can embed a file-reading payload into system email templates because the dataUrl...

PT-2026-54859

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.0.0-RC1 through 5.9.22 Craft CMS versions 4.0.0-RC1 through 4.17.15 Description An attacker with a GitHub account can inject a JavaScript payload into a craftcms/cms issue title. The payload executes within the control pan...

PT-2026-54861

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.0.0-RC1 through 5.9.22 Description A stored cross-site scripting issue exists where a user with author-level control panel permissions can embed a malicious JavaScript payload within an entry title. The execution occurs wh...

PT-2026-54862

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.9.0 through 5.9.x Description Control panel users with entry editing permissions can execute unsandboxed Twig code, which may lead to authenticated Remote Code Execution RCE. The issue occurs during the entry saving proces...