CVE-2026-22254

LOW EPSS 16.4%
Published Feb 6, 20264mo ago · Modified Jun 17, 20261w ago
3.5 CVSS 3.1
Low
Find Similar
Published Feb 6, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Versions of Winter CMS before 1.2.10 allow users with access to the CMS Asset Manager were able to upload SVGs without automatic sanitization. To actively exploit this security issue, an attacker would need access to the Backend with a user account with the following permission: cms.manage_assets. The Winter CMS maintainers strongly recommend that the cms.manage_assets permission only be reserved to trusted administrators and developers in general. This vulnerability is fixed in 1.2.10.

CVSS Details

Base Score
3.5
Exploitability
0.9
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
16.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-79 Cross-site Scripting Injection
CWE-80

Affected Products 1

VendorProductVersionRange
wintercmswinter* <1.2.10

References 3

  • github.com https://github.com/wintercms/winter/commit/8a7f74b004fcd19721764fc63af0cdb339d9fb65
    Patch
  • github.com https://github.com/wintercms/winter/releases/tag/v1.2.10
    ProductRelease Notes
  • github.com https://github.com/wintercms/winter/security/advisories/GHSA-m7gw-rffq-rxjm
    PatchVendor Advisory

Remediation

  • github.com https://github.com/wintercms/winter/commit/8a7f74b004fcd19721764fc63af0cdb339d9fb65
    Patch
  • github.com https://github.com/wintercms/winter/security/advisories/GHSA-m7gw-rffq-rxjm
    PatchVendor Advisory