CVE-2023-52084 Winter CMS Stored XSS through Backend ColorPicker FormWidget

What is CVE-2023-52084?

CVE-2023-52084 is a low-severity cross-site scripting vulnerability in wintercms winter, published on 28 Dec 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Winter is a free, open-source content management system. Prior to 1.2.4, Users with access to backend forms that include a ColorPicker FormWidget can provide a value that would then be rendered unescaped in the backend form, potentially allowing for a stored XSS attack. This issue has been patched in v1.2.4.

Weakness: CWE-79

Which versions are affected by CVE-2023-52084?

2 open source packages ship an affected version, including winter/wn-backend-module. It affects 1 product.

Products include Wintercms Winter.

How do I fix CVE-2023-52084?

Upgrade winter/wn-backend-module to 1.2.4 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-52084 being exploited?

There is no known exploitation of CVE-2023-52084 in the wild and no public exploit code.

Other vulnerabilities in wintercms winter

• CVE-2026-27591 Winter: Privilege escalation by authenticated backend users Critical 10.0
• CVE-2024-54149 Winter CMS Modules allows a sandbox bypass in Twig templates leading to data modification and deletion High 8.5
• CVE-2022-39357 Winter vulnerable to Prototype Pollution in Snowboard framework High 8.1
• CVE-2024-29686 Winter CMS Server-Side Template Injection (SSTI) vulnerability High 7.2
• CVE-2023-52085 Winter CMS Local File Inclusion through Server Side Template Injection Low 3.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-43w4-4j3c-jx29.