Description
Server-side Template Injection (SSTI) vulnerability in Winter CMS v.1.2.3 allows a remote attacker to execute arbitrary code via a crafted payload to the CMS Pages field and Plugin components. NOTE: the vendor disputes this because the payload could only be entered by a trusted user, such as the owner of the server that hosts Winter CMS, or a developer working for them.
Metrics
CVSS 3.1 7.2/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| wintercms | winter | 1.2.3 |
References
- https://forum.ksec.co.uk/t/webapps-winter-cms-1-2-3-server-side-template-injection-ssti-authenticated/2779Third Party Advisory
- https://wintercms.com/docs/v1.2/docs/cms/themes#template-structureProduct
- https://www.exploit-db.com/exploits/51893Exploit, Third Party Advisory
- https://forum.ksec.co.uk/t/webapps-winter-cms-1-2-3-server-side-template-injection-ssti-authenticated/2779Third Party Advisory
- https://wintercms.com/docs/v1.2/docs/cms/themes#template-structureProduct
- https://www.exploit-db.com/exploits/51893Exploit, Third Party Advisory
Timeline
- Published
- Mar 29, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed