CVE-2017-17735

CRITICAL

CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login information in cookies.

Affects 2 products across 1 vendor.

CVSS 3.09.8
EPSS1.1%
Percentile65th
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-200: Exposure of Sensitive Information

Application reveals restricted data such as system internals, credentials, or user data to unauthorized actors.

Related Attack Patterns (CAPEC)
CAPEC-13 Subverting Environment Variable Values
via CWE-200
CAPEC-59 Session Credential Falsification through Prediction
via CWE-200
CAPEC-60 Reusing Session IDs (aka Session Replay)
via CWE-200
CAPEC-79 Using Slashes in Alternate Encoding
via CWE-200
CAPEC-285 ICMP Echo Request Ping
via CWE-200
Show all 59

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

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2017. A critical vulnerability affects Cmsmadesimple systems (CVE-2017-17735). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2017-GLOBAL-228934-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2017-17735?
This vulnerability was disclosed in 2017. A critical vulnerability affects Cmsmadesimple systems (CVE-2017-17735). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2017-17735?
CVE-2017-17735 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: 1.1%.
Is CVE-2017-17735 actively exploited?
No confirmed active exploitation of CVE-2017-17735 as of 2026-09-25.
How do I remediate CVE-2017-17735?
Priority: MEDIUM. Advisory: https://forum.cmsmadesimple.org/viewtopic.php?f=1&t=77737
What systems are affected by CVE-2017-17735?
CVE-2017-17735 affects Cmsmadesimple Cms Made Simple.
Vulnerability Details
CVE IDCVE-2017-17735
BSIDBS-2017-GLOBAL-228934-C BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2017-12-18
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
Exposure of Sensitive Information
SourceNVD
Official Description

CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login information in cookies.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: CMS Made Simple (CMSMS) before 2.2.5 does not properly cache login information in cookies. 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 < 2.2.5
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 3224 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 Hash778b9dc9d3c6e6af1b132dd48fa5ab6e779e5b52da4e4f239b5ea2f22294faa4c87cfa01ed5f69008f01f25d4d55ed1f533dfaefb348e273d57c8a4d64f77280
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-2017-1000453 9.8 CMS Made Simple version 2.1.6 and 2.2 are vulnerable to Smarty templating inj...
View all Cmsmadesimple CVEs →

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