CVE-2024-29686

HIGH

Winter CMS 1.2.3 - Authenticated Server-Side Template Injection via CMS Pages Field

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-29686. PoCs published by tmrswrr.

AI-analyzed exploit summary This exploit demonstrates a Server-Side Template Injection (SSTI) vulnerability in Winter CMS 1.2.2. It shows how an authenticated attacker can inject Twig template expressions to execute arbitrary code and leak sensitive information, such as database credentials.

Description

Server-side Template Injection (SSTI) vulnerability in Winter CMS v.1.2.3 allows a remote attacker to execute arbitrary code via a crafted payload to the CMS Pages field and Plugin components. NOTE: the vendor disputes this because the payload could only be entered by a trusted user, such as the owner of the server that hosts Winter CMS, or a developer working for them.

Exploits (1)

exploitdb WORKING POC
by tmrswrr · textwebappsphp
https://www.exploit-db.com/exploits/51893

This exploit demonstrates a Server-Side Template Injection (SSTI) vulnerability in Winter CMS 1.2.2. It shows how an authenticated attacker can inject Twig template expressions to execute arbitrary code and leak sensitive information, such as database credentials.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Winter CMS 1.2.2
Auth required
Prerequisites: Authenticated access to the Winter CMS backend · Access to the 'Pages' section with plugin component editing privileges
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.2
EPSS 0.0447
EPSS Percentile 89.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-97
Status published
Products (2)
wintercms/winter 1.2.3
wintercms/winter 0Packagist
Published Mar 29, 2024
Tracked Since Feb 18, 2026