CVE-2023-52085Network attack vector

Local file inclusion via unvalidated ColorPicker values

Published Dec 29, 2023 · Updated Aug 2, 2024

Local file inclusion in Winter CMS before 1.2.4 allows remote authenticated users to include local files through crafted ColorPicker values. The Backend ColorPicker FormWidget saves attacker-controlled values without validation, and LESS compilation interprets embedded template syntax. Access to a backend form that both includes the widget and feeds its value into LESS is required; default Brand Settings and Mail Brand Settings forms meet that gate.

CVSS severity3.3
Low
EPSS probability30.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in Winter CMS before 1.2.4 allows remote authenticated users to include local files through crafted ColorPicker values. The Backend ColorPicker FormWidget saves attacker-controlled values without validation, and LESS compilation interprets embedded template syntax. Access to a backend form that both includes the widget and feeds its value into LESS is required; default Brand Settings and Mail Brand Settings forms meet that gate.

The record

CVE
CVE-2023-52085
Published
Dec 29, 2023
Updated
Aug 2, 2024
Vendor
Winter CMS
Product
Winter CMS
Classifications
CWE-1336, CWE-22
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Winter CMS · Winter CMSversion=< 1.2.4

Published CVSS scores

3.3GitHubCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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