{"id":"GHSA-39mm-rwm3-29jp","aliases":["CVE-2026-54718"],"title":"silverstripe-advancedworkflow vulnerable to remote code execution via advanced workflow email template","description":"### Impact\nThe advanced workflow email template field is vulnerable to a specially crafted payload that can be used to run arbitrary code on the server.\n\n### Reported by\nSteve Boyd\nSilverstripe Ltd.","severity":"high","score":7.2,"published":"2026-08-27T17:20:40.000Z","modified":"2026-09-11T05:15:04.550Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"symbiote/silverstripe-advancedworkflow","ranges":[{"events":[{"introduced":"0"},{"fixed":"6.4.5"}],"type":"ECOSYSTEM"}],"versions":["2.1.0","3.0.1","3.0.1-rc1","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.1.0","3.1.1","3.1.2","3.1.3","3.2.0","3.2.1","3.2.2","3.2.3","3.3.0","3.3.1","3.3.2","3.3.3","3.4.0","3.5.0","3.6.0","3.6.1","3.7.0","3.7.1","3.7.2","3.8.0","3.8.1","3.8.2","3.9.0","3.9.1","4.0.0","4.0.1","4.1.0","4.2.0","5.0.0","5.0.1","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7","5.0.8","5.1.0","5.1.1","5.1.2","5.2.0","5.2.1","5.2.2","5.3.0","5.3.1","5.4.0","5.4.0-beta1","5.4.0-rc1","5.5.0","5.5.0-alpha1","5.5.0-beta1","5.5.0-rc1","5.5.1","5.6.0","5.6.0-beta1","5.6.0-rc1","5.7.0","5.8.0","5.8.0-beta1","5.8.0-rc1","5.9.0","5.9.0-beta1","5.9.0-rc1","5.9.1","5.9.2","5.9.3","5.9.4","5.9.5","5.9.6","5.9.7","6.0.0","6.0.0-beta1","6.0.0-rc1","6.0.1","6.0.2","6.0.3","6.0.4","6.1.0","6.1.0-beta1","6.1.0-rc1","6.1.1","6.1.2","6.1.3","6.1.4","6.2.0","6.2.0-beta1","6.2.0-rc1","6.2.1","6.2.2","6.2.3","6.2.4","6.3.0","6.3.0-beta1","6.3.0-rc1","6.3.1","6.4.0","6.4.0-beta1","6.4.0-rc1","6.4.1","6.4.2","6.4.3","6.4.4"],"fixed":["6.4.5"]},{"ecosystem":"Packagist","name":"symbiote/silverstripe-advancedworkflow","ranges":[{"events":[{"introduced":"7.0.0"},{"fixed":"7.1.3"}],"type":"ECOSYSTEM"}],"versions":["7.0.0","7.0.1","7.0.2","7.1.0","7.1.0-beta1","7.1.0-rc1","7.1.1","7.1.2"],"fixed":["7.1.3"]},{"ecosystem":"Packagist","name":"symbiote/silverstripe-advancedworkflow","ranges":[{"events":[{"introduced":"7.2.0"},{"fixed":"7.2.1"}],"type":"ECOSYSTEM"}],"versions":["7.2.0"],"fixed":["7.2.1"]}],"references":["https://github.com/silverstripe/silverstripe-advancedworkflow/security/advisories/GHSA-39mm-rwm3-29jp","https://github.com/silverstripe/silverstripe-advancedworkflow/pull/629","https://github.com/silverstripe/silverstripe-advancedworkflow/pull/630","https://github.com/silverstripe/silverstripe-advancedworkflow/commit/28d0b536491e5c68b1c445579bdd1ddc8beaf8bb","https://github.com/silverstripe/silverstripe-advancedworkflow/commit/f170766af992ed2ed3e5f21d127d0d0d3129678b","https://github.com/FriendsOfPHP/security-advisories/blob/master/symbiote/silverstripe-advancedworkflow/CVE-2026-54718.yaml","https://github.com/silverstripe/silverstripe-advancedworkflow","https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/6.4.5","https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/7.1.3","https://github.com/silverstripe/silverstripe-advancedworkflow/releases/tag/7.2.1","https://www.silverstripe.org/download/security-releases/cve-2026-54718"],"sources":[{"name":"OSV","id":"GHSA-39mm-rwm3-29jp","modified":"2026-09-11T05:15:04.550979119Z","url":"https://osv.dev/vulnerability/GHSA-39mm-rwm3-29jp"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2}]}