Description
Craft CMS 4.x (>= 4.0.0-RC1, < 4.17.0-beta.1) and 5.x (>= 5.0.0-RC1, < 5.9.0-beta.1) contain multiple stored cross-site scripting vulnerabilities where settings names and field option labels are rendered without sanitization (e.g., via the checkbox.twig template, which used {{ label|raw }}). An authenticated administrator (with allowAdminChanges enabled) can inject malicious payloads into section names, volume names, user group names, global set names, generated field names, checkbox/radio option labels, and custom source labels, causing arbitrary JavaScript to execute in other users' control-panel sessions. Fixed in 4.17.0-beta.1 and 5.9.0-beta.1.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
Active
Confidentiality (Vulnerable System)
Low
Integrity (Vulnerable System)
Low
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
Low
Integrity (Subsequent System)
Low
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected products
- craftcms / cms5.0.0-RC1 – 5.9.0-beta.1
- craftcms / cms5.9.0-beta.1 – 5.9.0-beta.1
- craftcms / cms4.0.0-RC1 – 4.17.0-beta.1
- craftcms / cms4.17.0-beta.1 – 4.17.0-beta.1
References
- VENDOR_ADVISORYhttps://github.com/craftcms/cms/security/advisories/GHSA-4mgv-366x-qxvx
- PATCHhttps://github.com/craftcms/cms/commit/943152d2246b36f12adf161a03b8695b773d9276
- PATCHhttps://github.com/craftcms/cms/commit/67780a778c6ec04e68e64a0b1177c168306144a2
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/craft-cms-multiple-stored-cross-site-scripting-in-settings-names-and-field-options