CVE-2026-32257

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Source
https://cve.org/CVERecord?id=CVE-2026-32257
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32257.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-32257
Aliases
Published
2026-08-26T16:45:12.100Z
Modified
2026-08-28T03:46:16.735829427Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
Winter: Stored XSS through Brand Settings custom styles
Details

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.2.13, custom CSS supplied through the Brand Settings Styles field by a backend user with the backend.manage_branding permission is compiled by the LESS parser and rendered without sanitization on every backend page, allowing stored cross-site scripting against backend users. This issue is fixed in version 1.2.13.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32257.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Git / github.com/wintercms/winter

Affected ranges

Type
GIT
Repo
https://github.com/wintercms/winter
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d28f0b9474af79cfaa80eeb9d691f7a7c4469720
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.13"
        }
    ]
}

Affected versions

v1.*
v1.0.319
v1.0.320
v1.0.321
v1.0.322
v1.0.323
v1.0.324
v1.0.325
v1.0.326
v1.0.327
v1.0.328
v1.0.329
v1.0.330
v1.0.331
v1.0.333
v1.0.334
v1.0.338
v1.0.340
v1.0.341
v1.0.342
v1.0.343
v1.0.344
v1.0.345
v1.0.346
v1.0.351
v1.0.352
v1.0.353
v1.0.354
v1.0.355
v1.0.356
v1.0.358
v1.0.359
v1.0.360
v1.0.361
v1.0.362
v1.0.363
v1.0.364
v1.0.365
v1.0.366
v1.0.367
v1.0.370
v1.0.371
v1.0.372
v1.0.373
v1.0.374
v1.0.375
v1.0.376
v1.0.377
v1.0.378
v1.0.379
v1.0.380
v1.0.381
v1.0.382
v1.0.383
v1.0.384
v1.0.385
v1.0.386
v1.0.387
v1.0.388
v1.0.389
v1.0.390
v1.0.391
v1.0.392
v1.0.393
v1.0.394
v1.0.395
v1.0.396
v1.0.397
v1.0.398
v1.0.399
v1.0.400
v1.0.401
v1.0.402
v1.0.403
v1.0.404
v1.0.405
v1.0.406
v1.0.407
v1.0.408
v1.0.409
v1.0.410
v1.0.411
v1.0.412
v1.0.413
v1.0.414
v1.0.415
v1.0.416
v1.0.417
v1.0.418
v1.0.419
v1.0.420
v1.0.421
v1.0.422
v1.0.423
v1.0.424
v1.0.425
v1.0.426
v1.0.427
v1.0.428
v1.0.429
v1.0.430
v1.0.431
v1.0.432
v1.0.433
v1.0.434
v1.0.436
v1.0.437
v1.0.438
v1.0.439
v1.0.440
v1.0.441
v1.0.442
v1.0.443
v1.0.444
v1.0.445
v1.0.446
v1.0.447
v1.0.448
v1.0.449
v1.0.450
v1.0.451
v1.0.452
v1.0.453
v1.0.454
v1.0.455
v1.0.456
v1.0.457
v1.0.458
v1.0.459
v1.0.460
v1.0.461
v1.0.462
v1.0.463
v1.0.464
v1.0.466
v1.0.467
v1.0.468
v1.1.0
v1.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32257.json"