CVE-2017-1000453

CRITICAL

CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating injection in some core modules, resulting in unauthenticated PHP code execution.

Affects 2 products across 1 vendor.

CVSS 3.09.8
EPSS1.8%
Percentile78th
PatchPatched
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-74: Injection

Parent class for all injection vulnerabilities where attacker-supplied data is interpreted as code or commands.

Related Attack Patterns (CAPEC)
CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
via CWE-74
CAPEC-7 Blind SQL Injection
via CWE-74
CAPEC-8 Buffer Overflow in an API Call
via CWE-74
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-74
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-74
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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 Cmsmadesimple systems (CVE-2017-1000453). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2018-GLOBAL-113865-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2017-1000453?
This vulnerability was disclosed in 2018. A critical vulnerability affects Cmsmadesimple systems (CVE-2017-1000453). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2017-1000453?
CVE-2017-1000453 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: 1.8%.
Is CVE-2017-1000453 actively exploited?
No confirmed active exploitation of CVE-2017-1000453 as of 2026-05-30.
How do I remediate CVE-2017-1000453?
Priority: MEDIUM. Advisory: https://www.cmsmadesimple.org/2017/06/Announcing-CMSMS-2-2-1-Hearts-Desire/ PSIRT: [email protected]
What systems are affected by CVE-2017-1000453?
CVE-2017-1000453 affects Cmsmadesimple Cms Made Simple.
Vulnerability Details
CVE IDCVE-2017-1000453
BSIDBS-2018-GLOBAL-113865-C BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2018-01-02
Last Modified2024-11-21
ICS Relevance0%
Weakness (CWE)
Injection
SourceNVD
Official Description

CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating injection in some core modules, resulting in unauthenticated PHP code execution.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating injection in some core modules, resulting in unauthenticated PHP code execution. 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
Cmsmadesimple Cms Made Simple < 2.2 ≥ 2.2.1
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 3208 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 Hash28caaaa5d154e68cbfb57de459b33bc9b5f0d91ce250b83e2309073826886ee92261ef276d4997ef85aab14afd97072f2c20fac8338317346000e85e8d0ca6a4
Related CVEs affecting Cmsmadesimple
CVE-2010-4663 10.0 Unspecified vulnerability in the News module in CMS Made Simple (CMSMS) befor... CVE-2017-16783 9.8 In CMS Made Simple 2.1.6, there is Server-Side Template Injection via the cnt... CVE-2017-17734 9.8 CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login informatio... CVE-2017-6070 9.8 CMS Made Simple version 1.x Form Builder before version 0.8.1.6 allows remote... CVE-2017-17735 9.8 CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login informatio...
View all Cmsmadesimple CVEs →

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