CVE-2024-29686Public exploitNetwork attack vector

Authenticated code execution via CMS template editing

Published Mar 29, 2024 · Updated Aug 23, 2024

Server-side template injection in Winter CMS 1.2.3 allows remote authenticated users to execute code through CMS Pages and Plugin components. The reported behavior is the template engine's evaluation of stored Twig expressions and documented PHP sections, rather than a separately identified parser defect. Exploitation requires trusted template-editing privileges, and Winter CMS disputes that this intended capability constitutes a vulnerability.

CVSS severity7.2
High
EPSS probability1.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Winter CMS 1.2.3 allows remote authenticated users to execute code through CMS Pages and Plugin components. The reported behavior is the template engine's evaluation of stored Twig expressions and documented PHP sections, rather than a separately identified parser defect. Exploitation requires trusted template-editing privileges, and Winter CMS disputes that this intended capability constitutes a vulnerability.

The record

CVE
CVE-2024-29686
Published
Mar 29, 2024
Updated
Aug 23, 2024
Vendor
Winter CMS
Product
Winter CMS
Classifications
CWE-97
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 23, 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=1.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Winter CMS · Winter CMSversion=1.2.3

Published CVSS scores

7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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 exploitPublished

Weakness, pattern, technique

CWE-97Improper Neutralization of Server-Side Includes (SSI) Within a Web Page

Public exploit references

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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