Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user with permission to configure a UserForms email recipient can use the subject field to run arbitrary code on the server, compromising confidentiality, integrity, and availability. This issue is fixed in versions 6.4.9, 7.0.7, and 7.1.1.
Metrics
Affected Vendors & Products
References
History
Tue, 01 Sep 2026 14:45:00 +0000
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Silverstripe
Silverstripe userforms |
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Silverstripe
Silverstripe userforms |
Fri, 28 Aug 2026 17:30:00 +0000
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ssvc
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Thu, 27 Aug 2026 18:00:00 +0000
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| Description | Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user with permission to configure a UserForms email recipient can use the subject field to run arbitrary code on the server, compromising confidentiality, integrity, and availability. This issue is fixed in versions 6.4.9, 7.0.7, and 7.1.1. | |
| Title | Silverstripe UserForms: Remote code execution via userforms email subject | |
| Weaknesses | CWE-94 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-08-27T16:52:46.023Z
Updated: 2026-08-28T15:58:28.067Z
Reserved: 2026-06-15T23:07:33.231Z
Link: CVE-2026-54721
Updated: 2026-08-28T15:45:53.862Z
Status : Received
Published: 2026-08-27T20:17:49.973
Modified: 2026-08-28T20:18:17.080
Link: CVE-2026-54721
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