CVE-2026-79773 json
Winter CMS before 1.2.13 Local File Inclusion via JavaScript
published 2026-08-20 2 mo ago modified 2026-10-08 31 d ago also GHSA-2223-f22x-24cq , EUVD-2026-65531
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
Winter CMS before 1.2.13 contains a local file inclusion vulnerability in the JavascriptImporter filter that allows authenticated users with cms.manage_assets permission to disclose arbitrary server-readable files by placing =include or =require directives in theme JavaScript assets. Attackers can reference files like .env outside the theme directory, and the combined output served through the combine route becomes readable by unauthenticated visitors, exposing application keys and database credentials.
Patch / fix
- packagist winter/wn-system-module 1.2.13
- wintercms winter 1.2.13
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | winter/wn-system-module | <1.2.13 |
1.2.13 |
Affected products
- wintercms winter
Classification
References
-
github.com
/wintercms/winter/commit/e09c8d3526f3583cb6c3476a021b885088ecd4bd
patch, web
-
github.com
/wintercms/storm/commit/fd673f4f32140c97c68b1ed705764b819747fbdf
patch, web
-
github.com
/wintercms/winter/security/advisories/GHSA-2223-f22x-24cq
vendor-advisory, web
-
vulncheck.com
/advisories/winter-cms-before-local-file-inclusion-via-javascript
third-party-advisory
-
github.com
/wintercms/winter
package
-
github.com
/wintercms/winter/releases/tag/v1.2.13
web
Sources
- CVE List CVE-2026-79773
- GitHub Advisory GHSA-2223-f22x-24cq
- NVD CVE-2026-79773
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