Technology · Winter CMS
Winter CMS Backend Module vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 5 vulnerabilities in Winter CMS Backend Module: 0 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-54256, was published on 26 August 2026.
- Last 7 days
- 0
- Last 90 days
- 5
- Critical, all time
- 0
- Exploited in the wild
- 0
Latest Winter CMS Backend Module vulnerabilities
- CVE-2026-54256: Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the…mediumCVSS 5.4EPSS 0.2%
- CVE-2026-35445: Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did…highCVSS 4EPSS 0.4%
- CVE-2026-32258: Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. From 1.2.10 through…highCVSS 8.1EPSS 0.4%
- Winter CMS ImportExportController AJAX handlers permission bypasshighCVSS 8.3
- Winter Backend List widget stored XSS in image columnslowCVSS 2
Most severe Winter CMS Backend Module vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- Winter CMS ImportExportController AJAX handlers permission bypasshighCVSS 8.3
- CVE-2026-32258: Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. From 1.2.10 through…highCVSS 8.1EPSS 0.4%
- CVE-2026-35445: Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did…highCVSS 4EPSS 0.4%
- CVE-2026-54256: Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the…mediumCVSS 5.4EPSS 0.2%
- Winter Backend List widget stored XSS in image columnslowCVSS 2
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 2 | 0 | |
| 24 Aug 2026 | 3 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/backend-module.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Winter CMS Backend Module vulnerabilities", https://junglewise.ai/threats/technologies/backend-module, 26 September 2026.