CVE-2018-17126

CRITICAL

CScms 4.1 allows remote code execution, as demonstrated by 1');eval($_POST[cmd]);# in Web Name to upload\plugins\sys\Install.php.

Affects 1 product across 1 vendor.

CVSS 3.09.8
EPSS3.2%
Percentile88th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-94: Code Injection

Attacker injects arbitrary code that is executed by the application process.

Related Attack Patterns (CAPEC)
CAPEC-35 Leverage Executable Code in Non-Executable Files
via CWE-94
CAPEC-77 Manipulating User-Controlled Variables
via CWE-94
CAPEC-242 Code Injection
via CWE-94

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2018. A critical vulnerability affects Chshcms systems (CVE-2018-17126). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2018-GLOBAL-325978-C • Model: rule-based-v1 • Confidence: MEDIUM

Is this CVE in your environment?

BreachSpider monitors your ICS/OT environment for vulnerabilities like this one. No agents or network access required. Free to start.

Check My Environment →
Frequently Asked Questions
What is CVE-2018-17126?
This vulnerability was disclosed in 2018. A critical vulnerability affects Chshcms systems (CVE-2018-17126). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2018-17126?
CVE-2018-17126 has CVSS 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 3.2%.
Is CVE-2018-17126 actively exploited?
No confirmed active exploitation of CVE-2018-17126 as of 2026-09-25.
How do I remediate CVE-2018-17126?
Priority: MEDIUM.
What systems are affected by CVE-2018-17126?
CVE-2018-17126 affects Chshcms Cscms.
Vulnerability Details
CVE IDCVE-2018-17126
BSIDBS-2018-GLOBAL-325978-C BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2018-09-17
Last Modified2026-06-17
ICS Relevance15%
Weakness (CWE)
Code Injection
SourceNVD
Official Description

CScms 4.1 allows remote code execution, as demonstrated by 1');eval($_POST[cmd]);# in Web Name to upload\plugins\sys\Install.php.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: CScms 4.1 allows remote code execution, as demonstrated by 1');eval($_POST[cmd]);# in Web Name to upload\plugins\sys\Install.php. CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Chshcms Cscms 4.1
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 2951 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashc965e3bf96037ba8f8c0b0a6015278ff9043880302ff0da2741377cdc801937d1fb8b72b9259dffce7f0a70726ede148c2709935c9eeb8a401c8abfb8936f757
Related CVEs affecting Chshcms
CVE-2020-28102 9.8 cscms v4.1 allows for SQL injection via the "js_del" function. CVE-2020-22848 9.8 A remote code execution (RCE) vulnerability in the \Playsong.php component of... CVE-2018-16731 9.8 CScms 4.1 allows arbitrary file upload by (for example) adding the php extens... CVE-2020-21238 9.8 An issue in the user login box of CSCMS v4.0 allows attackers to hijack user ... CVE-2020-28103 9.8 cscms v4.1 allows for SQL injection via the "page_del" function.
View all Chshcms CVEs →

Critical Severity - Know Your Exposure

A CVSS 9.8 vulnerability in your ICS environment cannot wait. BreachSpider maps critical CVEs to your specific assets and tells you what to fix first.

Create a free account →