Winter CMS: Stored XSS through Backend List widget image columns

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-125341
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-10 20:19:08 UTC
Updated2026-11-10 21:19:22 UTC
DescriptionWinter CMS is a content management system built on the Laravel PHP framework. From 1.1.0 until 1.2.14, Backend\Widgets\Lists::evalImageTypeValue() interpolates the result of ImageResizer::filterGetUrl() into a single-quoted image source attribute without escaping it. In a third-party plugin that renders an attacker-influenced value through an image list column, an unsupported image value is returned verbatim, can break out of the attribute, and can inject event handlers that execute when a backend user views the list. Winter core ships no image list column, so a default installation is unaffected. This issue is fixed in version 1.2.14.

Risk And Classification

Primary CVSS: v3.1 2 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N
3.1CNADECLARED2LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wintercms Winter affected >= 1.1.0, < 1.2.14 Not specified

References

ReferenceSourceLinkTags
github.com/wintercms/winter/commit/0941c9816181095fe35d58e78e6d0c4a49238967 [email protected] github.com
github.com/wintercms/winter/security/advisories/GHSA-7mpf-4465-7fc2 [email protected] github.com
github.com/wintercms/winter/releases/tag/v1.2.14 [email protected] github.com
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