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CVE-2026-32257

8.1 · HIGH

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework.

Published Aug 26, 2026CWE-79EPSS 0.38%

Overview

CVE-2026-32257 is a high-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/wintercms/winter/commit/d28f0b9474af79cfaa80eeb9d691f7a7c4469720GitHubgithub.com/wintercms/winter/security/advisories/GHSA-v7cf-8gh9-gxmj

How CyberStrike helps

Frequently asked questions

What is CVE-2026-32257?

CVE-2026-32257 is a high-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-32257?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-32257?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-32257?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-32257 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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