CVE-2017-1000453

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

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 v3: 9.8
EG Score: 9.8(medium)
EPSS: 77.1%
KEV: Not listed

Published

January 2, 2018

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated May 23, 2026

No patch confirmed yet.

generic

Announcing CMSMS 2.2.1 "Hearts Desire" : : CMS Made Simple

https://www.cmsmadesimple.org/2017/06/Announcing-CMSMS-2-2-1-Hearts-Desire/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Data Freshness Timeline

(refreshed 11× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 12:58 UTCEG score recompute
2026-05-28 12:58 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2017-1000453?

CVE-2017-1000453 is a critical vulnerability published on January 2, 2018. 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.

When was CVE-2017-1000453 disclosed?

CVE-2017-1000453 was first published in the National Vulnerability Database on January 2, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2017-1000453 actively exploited?

CVE-2017-1000453 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2017-1000453?

CVE-2017-1000453 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2017-1000453?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-1000453, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2017-1000453

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Announcing CMSMS 2.2.1 "Hearts Desire" : : CMS Made Simple

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2017-1000453?

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Published

Last Modified

Advisory Details (1)

Frequently asked(5)

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